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| Surname | Emigrated From in Ireland | Settled In Iowa | Researcher |
| Adams | Co. Antrim | Johnson Co. | Catherine Wolken |
| Ager / Agar | Poss. Co. Carlow | Bremer Co. | Yvonne Moody Stephens |
| Agnew | Co. Down | Poweshiek Co | Judy & Robert |
| Ahern / Ahearn | Co. Cork | Dubuque & Delaware Cos. | Brent Banta |
| Allen | Unknown | Clinton Co. | Charles Hutchison |
| Antrim | Co. Antrim | Harrison & Taylor Cos. | Ken & Jan Frazier |
| Armstrong | Unknown | Dubuque Co | Sandy & Joe Miller |
| Anderson | Co. Tyrone | Ida Co | Becky Teubner |
| Archer | Freshford, Co Kilkenny | Muscatine Co | B. Archer |
| Arthur | Unknown | Dubuque Co. | cw4teach@aol.com |
| Ashe | Marhin, Co Kerry | Black Hawk Co | Helen M Ashe |
| Athey / Athy /Atha | Co. Galway | Iowa Co. | Penny Athey |
| Austin | Co. Down | Dubuque, Benton, Fayette, Buchanan Cos. | Nancy Rudolph |
| Babe | Co. Louth | Harrison Co | MTB |
| Bailey | Belmarcome, Northern Ireland | Johnson Co | Wayne K Steffensen |
| Ballard | Tullamore, Co. ? | Dubuque Co | Ron Ballard |
| Bannon | Queen's Co | Lee Co | Patricia Phelan Dailey |
| Baragary | Co. Tipperary | Benton Co. | Ray Baragary |
| Barrett | Co. Mayo | Allamakee Co | Ellen Hennessy |
| Barry | Co. Cork | Johnson Co | Donna J Balmes |
| Barry | Co. Clare | Benton Co | Don Barry |
| Barry | Co. Sligo or Donegal | Allamakee Co. | Kate Belgard |
| Barry | Co. Limerick | Monroe Co | njlenig@aol.com |
| Baxter | Cos. Fermanagh & Tyrone | Delaware Co | Becky Teubner |
| Baxter | Drumliff, Co Fermanagh | Allamakee Co | Debbie Baxter Turner |
| Beary | Co. Tipperary | Monroe Co | Pat Beary |
| Beatty | Unknown | Delaware Co | Becky Teubner |
| Behan | Co. Galway | Tama Co | Barbara Cory |
| Bellew | Unknown | Webster Co. | Pam Sherry |
| Benn | Co. Galway | Dubuque Co. | David Benn |
| Berigan | Unknown | Fremont Co. | Jim Stinson |
| Berigan | Unknown | Jackson Co. | Nancy Stinson |
| Black | Unknown | Iowa Co | Varlyn & Jane Fink |
| Blackburn | Kiltyferrigle, Cloghan, Co. Donegal | Allamakee Co. | John Patton |
| Blair | Co. Antrim | Warren & Decatur Cos. | Frank Moden |
| Blake | Co. Clare | Winneshiek Co | Barbara Bader |
| Blake | Adrigole, West Cork | Allamakee Co. | Jeannie Hegeman |
| Blake | Co. Cavan | Dubuque Co. | Nancy Chamberlain |
| Blanchfield | Co. Kilkenny | Clinton Co. | Jean Kremer |
| Boland | Offaly / King's Co. | Linn Co. | John G. Henry |
| Bolger / Bulger | Parish of Danesfort, Kilkenny | Allamakee Co. | Pat |
| Bowen | Unknown | Bremer Co | Valery Wachter |
| Boyd | Unknown | Scott Co | Joann Sebasta |
| Boylan / Boylen | Co. Monaghan | Adams Co | Cheryl Gauthier-Williams |
| Boyle | Co. Clare | Dubuque & Jackson Cos. | Alan Boyle |
| Boyle | Co. Cavan or Monaghan | Jackson, Buchanan, Linn Cos. | Teresa Wilson |
| Boyle | Co. Cork | Clinton Co. | Michael J Kearney |
| Boyle | Unknown | Iowa | Vern Ralph |
| Boyle | Co. Louth | Sac Co | Bernie O'Brien |
| Bracelin | Co. Donegal | Clinton & Scott Cos. | PCurcio@aol.com |
| Bradley | Co. Kerry | Wapello Co. | Teresa Shirley |
| Brady | Co. Cavan | Dubuque Co | Marilyn Sobotka |
| Brady | Unknown | Clayton Co | Nan Seals |
| Brady | Unknown | Van Buren Co | Mike Morrison |
| Brady | Co. Cavan | Johnson & Keokuk Cos. | Priscilla A. Schmidt |
| Brannon | Co. Monaghan | Chickasaw Co | Tim Daly |
| Brannon | Co. Roscommon | Guthrie Co. | Dave Brannon |
| Brazel | poss. Co. Kilkenny | Buena Vista Co | Lynn Mohr |
| Breen | Unknown | Linn Co | Cynthia Cavanaugh Salvador |
| Breen | Unknown | Linn Co | Deveron |
| Breen | Unknown | Muscatine Co | Tabitha M Powledge |
| Breen / Brien | Co. Louth | Jasper Co | Ralph Brien |
| Breheny | Co. Roscommon | Jones Co. | Mary Kay Kuhfittig |
|
Brennan |
St. John's, Roscommon |
Palo Alto Co |
|
|
Brennan / Brennen |
Unknown |
Polk or Dallas Co |
|
|
Brennan |
Co. Galway |
Jones Co |
|
|
Brennan |
Unknown |
Dubuque Co |
|
| Brennan | Unknown | Webster Co | Michael Burch |
|
Brennan / Brannan |
Unknown |
Dubuque Co |
|
|
Brennan |
Unknown | Webster Co | Thomas B Burch |
|
Brennan |
Unknown | Linn Co. | Julie Doyle |
|
Britten |
Co. Donegal |
Story Co. |
|
|
Brody |
Unknown |
Ida Co |
|
|
Brogan |
Co. Roscommon |
Crawford Co. |
|
|
Brogan |
Co. Donegal |
Clinton Co. |
|
|
Brown |
Co. Westmeath |
Polk Co. | Jeanette O'Boyle |
|
Brown |
Unknown |
Greene, Palo Alto, Clay Cos. | Patricia Griffiths |
|
Brown |
Co. Clare |
Benton & Polk Cos. | Tom Brown |
|
Brownlee |
Co. Antrim |
Ida Co. | Ted Brownlee |
|
Buckley |
Mallow, Co Cork |
Jones Co | Virginia Haynes |
|
Buckley |
Glanmire, Co Cork |
April | |
|
Bulger |
Unknown |
Clinton Co. | Michael J Kearney |
|
Bunbury |
Unknown |
Black Hawk Co | Jackie DuBois |
|
Burgess / Burgis |
Ballyclogh, Co Cork |
Hardin Co | Jo Davis Pearson |
|
Burk / Burke |
Co Cork |
Benton Co | Shawn Harkin |
| Burke | Co. Tipperary | Clinton Co | Bill Burke |
| Burke | Co. Tipperary | Clinton Co. | Jean Kremer |
| Burke | Co. Cavan | Jackson & Cerro Gordo Cos. | Teresa Wilson |
| Burke | Co. Cork | Des Moines & Clinton Cos. | Michael J Kearney |
| Burke | Co. Galway | Buchanan Co. | Theresa Postel Payne |
| Burke | Unknown | Cherokee Co | Valery Wachter |
| Burke | Co. Mayo | Buchanan Co. | Randy McGraw |
| Burke | Clayton Co | Jill Adami | |
| Burke | Co. Longford | Clinton Co. | John Burke |
| Burke | Co. Galway | Jackson & Dubuque Cos. | Carol Veio |
| Burns | Unknown | Jefferson Co. | Tom Brown |
| Burns | Unknown | Dubuque Co. | DPCV15@aol.com |
| Burns / Byrnes | Gowran, Co. Kilkenny | Potawattamie Co | John Fergus Shekleton |
| Butler | Co. Cork | Webster Co | Constance Nash Nelson |
| Butler | Co. Tipperary | Iowa & Polk Cos. | Jeanette O'Boyle |
| Butler | Unknown | Scott, Clinton, Pocahontas & Obrien Cos. | Connie Butler |
| Butler | Kilcarney, Wicklow | Kossuth Co | James Butler |
| Butler | Co. Wexford | Floyd Co. | Steve Tynan |
| Byrne | Co. Wicklow | Muscatine Co. | Sheila Chaudoin |
| Byrne | Seskin, Co. Wicklow | Muscatine Co. | Patricia B. Proper |
| Byrne | Co. Wexford | Lee Co | Patricia Phelan Dailey |
| Byrne | Co. Armagh | Clayton & Jones Cos. | Pat Byrne Thurmes |
| Byrnes | Unknown | Scott Co | James M Linehan |
| Byrnes | Queen's Co | Jackson & Palo Alto Cos. | Gerri Witte |
| Cahill | Co. Kerry | Linn Co | Cynthia Cavanaugh Salvador |
| Cahill | Co. Kerry | Linn Co | Mary Kay Kuhfittig |
| Cahill | Co. Tipperary | Dubuque & Jackson Cos. | Maurna Complita |
| Cain | Unknown | Calhoun Co. | Bren |
| Cain / Kain | Co. Tipperary | Greene Co. | Karen Mackey |
| Calderwood | Co Antrim | Scott Co | Barbara Copley |
| Callahan | Unknown | Webster Co | Jim Berman |
| Callahan | Unknown | Webster Co | Jim O'Brien |
| Campbell | Tamlaught, O'Crilley, Londonderry | Scott Co | Dorothy Brown |
| Campbell | Dungloe, County Donegal | Cerro Gordo Co | Brett Dockry |
| Campbell | Co. Cork | Cerro Gordo Co. | GMBjork@aol.com |
| Canfield | Unknown | Franklin & Floyd Cos. | Lorraine Hand |
| Cannon | Co. Donegal | Clinton Co | Cynthia Cavanaugh Salvador |
| Cannon | Co. Donegal | Jackson & Dubuque Cos | Patrick Coleman |
| Canny | Unknown | Wapello Co. | Julie A Barwick |
| Canton | Co. Cork or Kerry | Chickasaw Co | Karon Kohn Hamilton |
| Carbin | Unknown | Monroe Co | Janice Egan |
| Carhill | Co. Tipperary | Dallas Co. | Ken Carhill |
|
Carlin |
Co Donegal |
||
|
Carlin |
Co. Tyrone |
Pottawattamie Co |
|
|
Carlin |
Co. Donegal |
Scott Co. |
|
|
Carneal / Carnal |
poss. Co Antrim |
Tama Co |
|
|
Carnes |
Co. Tyrone |
Des Moines Co |
|
|
Carney |
Unknown | Monroe Co | Janice Egan |
|
Carns |
Unknown |
Clark Co |
Indianesummer@aol.com |
|
Carolan |
Co. Cavan |
Winneshiek Co. |
|
|
Carr |
Ahalahana, Co Kerry |
Adams Co |
|
|
Carr |
Co. Galway |
Jones & Dubuque Cos. |
|
|
Carr |
Cos. Cavan & Cork | Clayton Co. | Michael F. O'Brien |
|
Carr / Kerr |
Co. Donegal | Scott Co. | Barbara |
|
Carrigan |
Unknown |
Union Co |
|
|
Carrigan |
Co. Clare |
Allamakee Co |
|
|
Carrigg |
Unknown |
Black Hawk Co. |
|
|
Carroll |
Co. Cork |
Clayton Co. |
|
|
Carroll |
Co. Mayo & Co. Cavan |
Dubuque Co. |
|
|
Carrothers |
Co. Fermanagh |
Delaware Co | Becky Teubner |
|
Carson |
Co. Tyrone |
Crawford Co | Micaboyd@aol.com |
|
Casey |
Co. Galway |
Greene Co |
|
|
Casey |
Co. Cork |
Allamakee Co. |
|
|
Casey |
Blacklion, Co. Fermanagh | Winnishiek Co. | Mary Barbara Nolan Franklin |
|
Casey |
Co. Louth | Scott, Iowa, Crawford Cos. | John Casey |
|
Casey |
Co. Meath | Dubuque Co. | Duane Casey |
|
Cash |
Co. Tipperary |
Johnson Co |
|
| Casserly | Co. Mayo | Greene Co | Eve Casserly |
| Catterson | poss Co. Donegal | Des Moines Co. | Marilyn Ask |
| Cavanaugh | Unknown | Clinton Co | Cynthia Cavanaugh Salvador |
| Cavanaugh | Unknown | Taylor Co | Rosemary Hoffman Braun |
| Cavanaugh | Unknown | Julie Niezgucki | |
| Cavanaugh / Cavanagh | Unknown | Joe Ford | |
| Cavanaugh / Kavanaugh | Cohahy parish, Co. Kilkenny | Clinton Co | Michael A Cavanaugh |
| Cavanagh / Kavanagh | Co. Wicklow | Buchanan Co. | Bernie O'Brien |
| Chesire | Co. Meath | Jones Co. | Mary Kay Kuhfittig |
| Clancy | Co. Cork | Jackson & Clinton Cos. | Mary McDonnell Petersen |
| Clare / Clear / Clear | Co. Wexford | Palo Alto Co | Gladys Wilcox |
| Clark | Co. Mayo | Poweshiek Co | Pat Clarke Fogel |
| Clark | Unknown | Jm657@cs.com | |
| Clark | Unknown | Monroe Co | Janice Egan |
| Clark | Co. Monaghan | Allamakee Co | Jody Howard |
| Clarke | Unknown | Jackson Co | Kathy McGinty Stoneberg |
| Clarkin | Co. Sligo | Des Moines Co. | Ria Pallaris |
| Cleary | Unknown | Clinton Co. | Charles Hutchison |
| Cleary | Co. Wicklow | Dubuque Co. | Patrick Coleman |
| Cochran | Co Donegal | Jefferson Co | Joe Cochran |
| Cody / Coady | Co. Carlow | Greene Co | vargasd@zianet.com |
| Cody | poss. Co. Cork | Pottawattamie Co. | Brian O'Neill |
| Coffee | Unknown | Dubuque & Webster Cos. | AL Agnew |
| Coffey | Co. West Meath | Scott Co | Marianne Ruppersberger |
| Coleman | Co. Cork | Allamakee, Jackson & Dubuque Cos. | Patrick Coleman |
| Coleman | Co. Tipperary | Monroe Co. | Marilyn Coleman |
| Coleman | Co Down | Delaware Co | Becky Teubner |
| Coleman | Unknown | Louisa Co | Helen Hitchcock |
| Coleman | Unknown | Winneshiek Co. | Julia Joaquin |
| Coleman | Co. Galway | Alamakee Co. | Jeanne Coleman |
| Collins | Co. Limerick | Dan Zoll | |
| Collins | Co. Cork | Scott Co | Jo Banks |
| Collins | Unknown | Iowa Co | Patrick Grams |
| Collins | Co. Clare | Crawford Co | Ron Collins |
| Collins | Co. Clare | Crawford Co | Scott Mahoney |
| Collins | Co. Clare | Webster & Pocahontas Cos. | Vicki Collins Showers |
| Collins | Co. Cork | Dubuque & Woodbury Cos. | Rowena King |
| Collins | Grinan, Co. Down | Iowa | Maureen Morales |
| Collins | Unknown | Palo Alto Co. | Roger Dietrich |
| Collins | Co. Mayo | Benson Co | TPMcKenna@aol.com |
| Collins | Glenbrohane, Co. Limerick | Clinton Co. | Kevin Huigens |
| Condon | Unknown | Polk Co. | SANDI DOTY |
| Conlan | Unknown | Dubuque Co. | Pat Byrne Thurmes |
| Conly | Co. Kildare | Webster Co | Joan Ewing |
| Conn | Co Down | Boone Co | Jobeth Fjell |
| Conn | Londonderry | Polk Co. | Cliff Conn |
| Connally | Co. Cork | Delaware Co | Debra Anderson |
| Connell | Unknown | Bremer Co | Valery Wachter |
| Connell | Co Cavan | Page Co | Kim Walker |
| Connell | poss Co. Tyrone | Mitchell Co. | Kathleen Ryan |
| Conner | Unknown | Caroll Co. | Roger Smith |
| Connery / Conery | Co. Limerick | Howard Co. | Laurence Connery |
| Connole | Co. Clare | Jones Co. | Tracey Connole |
| Connolly | Co. Tipperary | Dubuque & Jackson Cos. | Jim Sazevich |
| Connor | Co. Leitrim | Allamakee Co. | Moira |
| Connors | Co. Tipperary | Webster Co. | Les Connors |
| Connors | Unknown | Clinton & Clayton Co | Jim Sazevich |
| Conroy | Unknown | Chickasaw Co. | Judith Strobel |
| Considine | Co. Clare | Dubuque Co. | Nancy Chamberlain |
| Conway | Unknown | Fayette Co | Helen O'Malia |
| Conway | Ballycroy, Co. Mayo | Allamakee Co. | J. Skog |
| Coogan | prob. Co. Monaghan | Howard, Chickasaw, Fayette Cos | Patricia Connor Coogan |
| Cooligan | Unknown | Dubuque & Jones Cos. | Ellen Elliott |
| Cooney | Co. Clare | Dubuque Co. | Susan Crowe |
| Cooney | Co. Clare | Buchanan Co | Jim Cooney |
| Cooney | Co. Tipperary | Iowa Co. | Rosemary Dalton |
| Cooney | Co. Cavan | Chickasaw Co. | Ken Sullivan |
| Copley | Co Kilkenny | Scott Co | Barbara Copley |
| Coppinger | Co. Cork | Webster Co | Clifford James Coppinger |
| Corbett | Co. Down | Iowa | Don J Boyle |
| Corcoran | Addergoole, Mayo | Clinton Co | Catherine Riley |
| Corcoran | Co. Mayo | Alamakee Co. | Jeanne Coleman |
| Corcoran | Co. Cork | Dubuque Co. | Patrick Coleman |
| Corrigan | Co. West Meath | Keokuk Co | Bert Caster |
| Corrigan | Co. Mayo | Wapello Co. | Kevin Corrigan |
| Corrough | Co Down | Polk Co. | Jamlar2@aol.com |
| Cornwell | Co. Roscommon | Pocahontas Co. | John Murray |
| Costello | Co. Tipperary | Clinton Co. | Jean Kremer |
| Costello | Co. Tipperary | Clinton & Crawford Cos. | Joann O'Meara |
| Costello | Unknown | Iowa Co | Varlyn & Jane Fink |
| Costello | Co. Clare | Scott, Crawford & Cass Cos. | Mike Costello |
| Costello | Co Kerry | Jam15108@aol.com | |
| Costello | Co. Cork | Blackhawk Co. | David B. McGuire |
| Costolo | Co. Roscommon | Johnson Co. | Rosemary Dalton |
| Cotter | Unknown | Clinton Co | Barbara Quinlan |
| Coughlan / Coughlon | Co. Cork | Webster Co. | Janet Swenerton |
| Coughlin | Co. Clare | Scott Co. | Marianne LeMenager |
| Courtney | Co. Cavan | Scott & Dubuque Cos. | Jean Smith |
| Cox | Co. Clare | Scott, Crawford & Cass Cos. | Mike Costello |
| Coyne | Co. Mayo | Webster Co | Ellen Hennessy |
| Coyne | Co. Roscommon | Story Co | vargasd@zianet.com |
| Coyne | Unknown | Marshall Co. | Jim Carkuff |
| Craig / Cregg | Co. Roscommon | Woodbury Co | Diane Stern |
| Craig | Co. Monaghan | Henry Co. | Patricia |
| Crawford | Co. Longford | Scott Co | Jack Golden |
| Crean / Crane | Dunquin, Co. Kerry | Jackson & Dubuque Cos. | Karen D Alvarez |
| Cree | Co. Down | Hardin Co | LVande36@aol.com |
| Creighton | Co. Donegal | Adair Co | Carol Creighton Jaquith |
| Creighton | probably Co. Cavan maybe Co. Monaghan | Wapello Co. | Albert Richardson |
| Croker | Co. Fermanagh, Co. Cavin, Ireland | Marshall & Story Cos. | R. Mann |
| Cronin | poss. Co. Kerry | Johnson Co | Grace Schmitt |
| Crooks | Co. Tyrone | Chickasaw Co. | Steve Tynan |
| Crossen | Drumgoon Parish, Cavan Co | Patrick H Crossen | |
| Crowley | Co. Cork | Des Moines & Clinton Cos. | Michael J Kearney |
| Cullen | unknown | Kossuth Co | Audrey Reilly |
| Cullen | Unknown | Dubuque Co | Marilyn Sobotka |
| Cullen | Co. Cavan | Dubuque Co | Cindy Wood |
| Cullen | Co. Cavan | Dubuque Co | Moya Cullen Nordholm |
| Cullen | Co. Cavan | Clayton & Palo Alto Cos. | Jim Cullen |
| Culley / Cully | Unknown | Fremont Co | Trudee Svaldi |
| Culley / Cully | Co. Meath | Clarke Co. | Donna Olovson |
| Cullinan | Co. Clare | Dubuque Co. | Nancy Chamberlain |
| Cunningham | Co. Cork | Dubuque Co | Karen Bergmann |
| Cunningham | Co. Westmeath | Dubuque Co | Bonnie Kaplan |
| Culleton | Co. Kilkenny | Fremont Co | Patricia Maher |
| Curley | poss. Co. Galway | Jones & Fremont Cos. | Patricia Maher |
| Curran | Mallow, Co. Cork | Jones & Dubuque Cos. | Virginia Haynes |
| Curran | Unknown | Allamakee Co | Elaine Mershon |
| Curran | Raheenagh, Barony of Glenquin, Parish of Killeedy, Limerick Co | Polk Co. | S.M. Jennison |
| Curley | Co. Galway | Jones Co | Jack Winning |
| Curtin | Co. Cork | Dubuque & Woodbury Cos. | Rowena King |
| Curtis | Co. Meath | Story Co. | Vicky Myers |
| Cusick | Unknown | Polk Co | Nancy Baker |
| Cutler | Unknown | Madison Co. | DHolland8403@aol.com |
| Dahoney | Unknown | Johnson Co. | Patricia Morris |
| Daily | King's Co | Palo Alto Co | Cyndi Hailey |
| Dalton | Co. Mayo | Calhoun Co | Constance Nash Nelson |
| Dalton | Co. Kilkenny | Iowa Co | NurIowa@aol.com |
| Daly | Co. Galway | Winneshiek Co | Tim Daly |
| Daly | Co. Meath | Jones Co. | Mary Kay Kuhfittig |
| Daly | Unknown | Fayette & Chickasaw Cos. | TexasNormLeona@aol.com |
| Danaher | Co. Limerick | Allamakee Co | Kathy Maurer |
| Darmody, Dermody, Dormady | Co. Galway | Howard Co | Patricia Connor Coogan |
| Daugherty | Unknown | Davis Co. | Jerry Daugherty |
| Davis | Co. Donegal | Linn Co. | John Davis |
| Day | Co. Kerry | Washington Co | Darlene Scott |
| Dean | Co. Cork | Washington Co | Darlene Scott |
| Deeny / Deeney | Co. Donegal | Allamakee & Cerro Gordo Cos. | Judy Kelly Fausch |
| Delaney | Co. Cork |
Johnson Co |
|
| Delaney | Unknown | Scott Co | Mary Tucker |
| Delaney | Unknown | Jackson Co. | Patricia Ryan McEnany |
| Delaney | Queen's Co. | Lee & Jackson Cos. | Helen Delaney Cremer |
| Delaney | Co. Meath | Allamakee Co. | Tina Delaney Hogan |
| Delehant(y), Delahunt(y), Dilihant(y) | poss. King's Co | Dubuque Co | Karla Staudt |
| Delehanty | poss. Co. Tipperary | Jackson & Dubuque Cos. | Teresa Wilson |
| Delehant(y) | Birr, King's Co | Dubuque & Jackson Cos | Penny LaDue |
| Dermody | Co Galway | Adair Co | Robert Handley |
| Devine | Co. Clare | Clinton Co | Isabel M Devine |
| Devine | Dingle, Co. Kerry | Monroe Co. | Marilyn Coleman |
| Devine | Unknown | Delaware Co | Becky Teubner |
| Devitt | Co. Clare | Dan Zoll | |
| Devlin | Unknown | Wapello Co. | Rich Devlin |
| Devlin | Co. Derry | Clayton Co. | Kathy Devlin |
| Dick | Co. Tyrone | Lee Co | Ron & Carla |
| Dighton | Unknown | Dubuque Co | Kathy McGinty Stoneberg |
| Dignan | Co. Meath | Clinton Co. | James Dignan |
| Dillon | Listowel, Co. Kerry | Dubuque Co. | Karen D Alvarez |
| Dillon | Unknown | Delaware & Mitchell Cos. | Mary Jo Hanon |
| Dillon | Unknown | Dubuque Co | Marilyn Sobotka |
| Dillon | Unknown | Henry & Davis Cos. | Linda Duncan |
| Dinneen | Kilnamatyre, Co. Cork | Louisa and Monroe Cos. | Rosemary Tiwari |
| Direen | Co. Kilkenny | Clayton Co. | Myron L Kelleher |
| Dixon | Unknown | Delaware & Jones Cos. | Dennis Ward |
| Doherty | Unknown | Clinton Co | Barbara Quinlan |
| Dolan | poss. Co. Monaghan | Jackson & Dubuque Cos | Patrick Coleman |
| Dolan | Co. Roscommon | Greene Co | vargasd@zianet.com |
| Dolan | poss. Co. Cork | Crawford Co | Robert Dolan |
| Dolan | Co. Cork | Blackhawk Co. | David B. McGuire |
| Donahue | Co. Westmeath | Palo Alto Co | Kathleen Puls |
| Donahue | Hospital, Co. Limerick | Clinton & Palo Alto Cos. | Dawn Ford |
| Donahue | Unknown | Clayton Co. | Ginger Kruse |
| Donahue / Donahoe | Co. Cavan | Dubuque & Jones Cos. | Patrick Coleman |
| Donahue / Donohoe / Donoghue | Co. Roscommon | Pottawattamie Co. | Marsha Carmichael |
| Donohue | Unknown | Scott Co | James M Linehan |
| Donovan | Unknown | Monroe & Union Cos. | pwrigh01@aol.com |
| Donovan | Unknown | Dubuque & Jackson Cos. | F. Donovan |
| Dooley | Co. Donegal | Clinton Co | Cynthia Cavanaugh Salvador |
| Doran | Unknown | Wapello Co. | Alice Myers |
| Dornan | Unknown | Mahaska Co | Mary Frances Dornan Coates |
| Doud | Unknown | Poweshiek Co | Karen Johnson |
| Dougherty | Co. Tyrone | Jeanette Mahony | |
| Dougherty | Unknown | Allamakee Co. | Jeannie Hegeman |
| Dougherty | Co. Donegal | Cerro Gordo & Butler Cos. | Jack Hagarty |
| Dougherty | Co. Donegal | Allamakee Co. | Pat Pasmore |
| Dougherty | Joyce Gill | ||
| Dougherty | Unknown | Marshall Co. | Jim Carkuff |
| Dow | Co. Clare | Scott, Crawford & Cass Cos. | Mike Costello |
| Downing | Co. Cork | Butler Co. | Linda Pierce |
| Doyle | Co. Waterford | Butler Co | Joe Kenney |
| Doyle | Unknown | Scott Co. | Jean Smith |
| Doyle | Co. Dublin | Jackson Co | Ken Wright |
| Doyle | Unknown | Greene Co | vargasd@zianet.com |
| Doyle | Unknown | Greene Co. | Maureen Day Moore |
| Doyle | Kilcullen, Co. Kildare | Fayette Co. | Rae Freet |
| Drew | Co. Limerick | Winneshiek Co | Mary Ann Fox |
| Driscol | Unknown | Benton Co | Deborah Corlew |
| Driscoll | Co. Cork | Iowa & Johnson Cos. | Teresa Wilson |
| Driscoll | Unknown | Iowa Co | Patrick Grams |
| Drummy | Co. Cork | Dubuque & Delaware Cos. | Brent Banta |
| Duart | Co. Down | Delaware Co | Thelma Duart Hodgson |
| Duffin | Co. Antrim | Scott Co. | Sally Gorman Sandoval |
| Dugan | Co. Louth | Dallas Co. | Kimberly Dugan Buckman |
| Duggan | Co. Cork | Jackson & Dubuque Cos. | Patrick Coleman |
| Duggan | Athlone, Roscommon | Iowa Co | Kay McNally McConkey |
| Duhigg / Duhig | Co. Limerick | Harrison Co | Jacquelyn Jones |
| Dunn |
Co Cork |
Benton Co | Shawn Harkin |
| Durigan | Co. Meath | Jones Co | Constance Nash Nelson |
| Dwire | Unknown | Jefferson Co. | Tom Brown |
| Dwyer / O'Dwyer | Co. Tipperary | Dubuque & Jackson Cos. | Maurna Complita |
| Dwyer | Co. Tipperary | Iowa Co. | Marian McQuaid |
| Eakin | Unknown | Dallas Co | Judy DeGennaro |
| Early | Unknown | Delaware, Webster & Dubuque Cos. | Mary Jo Hanon |
| Egan | Unknown | Monroe Co. | Marilyn Coleman |
| Egan / Eagan | Unknown | Madison Co. | Helene Fennessy |
| Egan / Eagan | Unknown | Fremont & Harrison Cos. | Ken & Jan Frazier |
| Eagen | poss Co. Tyrone | Mitchell Co. | Kathleen Ryan |
| Egan | Unknown | Mitchell Co | Jean-Philippe Chaumont |
| Elder | Co. Antrim | Monroe & Wayne Cos. | Judith Elder Kruse |
| Emerson | Unknown | Delaware Co | Becky Teubner |
| Ennis | Co. Longford | Scott Co | Jack Golden |
| Enright | Co. Kerry or Cork? | Allamakee & Cerro Gordo Cos. | Jack Webster |
| Essex | Unknown | Poweshiek Co | Karen Johnson |
| Everett | Co. Mayo | Clay Co. | Patricia Griffiths |
| Ewert | Co. Down | Poweshiek Co. | Dixie McNatt |
| Fagan | Co. Antrim | Linn Co | Cynthia Cavanaugh Salvador |
| Fagan | Co. Meath | Jones Co | Pat O'Brien |
| Fahey / Fay | Co. Tipperary | Jones, Jackson & Guthrie Cos | Virginia Haynes |
| Fahy | Unknown | Palo Alto Co | Zeehud@aol.com |
| Fair | Co. Tyrone | Ida Co | Becky Teubner |
| Farrell | unknown | Scott & Clinton Cos. | Mikki Judge |
| Farrell | Co. Wicklow | Wayne & Lucas Cos. | Nada Morford |
| Farrell | Co. Longford | Unknown | K Murphy |
| Farrell | Unknown | Muscatine Co | Dennis Conard |
| Farrell | Unknown | Cedar, Lucas, Wayne Cos | Nan Seals |
| Farrell | Co. Roscommon | Dubuque & Muscatine Cos. | Julie Dueis |
| Farrell | Co. Kilkenny | Benton & Linn Cos. | Pam Farrell |
| Farry | Unknown | Clayton Co. | Martha Schulte |
| Fay | Bohermeen, Co Meath | Woodbury Co | Jacqui Fay Olson |
| Fee | Unknown | Delaware Co | Karen Foley |
| Feeney | Co. Galway | Chickasaw Co | Tim Daly |
| Feeney | Co. Roscommon | Jackson, Taylor, Adams & Dubuque Cos. | Patrick Coleman |
| Fenelon | Co. Carlow | Allamakee & Dubuque Cos. | Kathy Maurer |
| Fennell | Co. Clare | Monroe Co. | Marilyn Coleman |
| Fennell | Queen's Co. | Wayne Co. | Gloria Jordan |
| Ferguson | Co. Fermanagh | Poweshiek & Keokuk Cos | Marty Bryer |
| Ferris | Co. Cavan | Iowa Co. | Sandra Ferris Allen |
| Finn | poss. Co. Galway | Dubuque & Palo Alto Cos | Cathy Joynt Labath |
| Finn | Unknown | Dubuque Co | Stephanie |
| Finnegan / Finegan | Unknown | Fayette Co. | Kathleen Lerick |
| Fitzgerald | Co. Roscommon | Johnson Co | Joan Rogers |
| Fitzgerald | Co. Cork | Allamakee & Pocahontas Cos. | Patrick Coleman |
| Fitzgerald | Unknown | Taylor Co | Rosemary Hoffman Braun |
| Fitzgerald | Kilkee, Co Clare | Des Moines & Lee Cos | Linda Clayton |
| Fitzgerald | Co. Tipperary | Dubuque Co | Karen Bergmann |
| Fitzpatrick | Co. Clare | Scott Co | Jo Banks |
| Fitzpatrick | Claremorris, Co. Mayo, Ireland | Greene Co | Debra Fitzpatrick (Monk) |
| Fitzpatrick | Unknown | Johnson Co. | Patricia Morris |
| Flaherty | Co. Kerry | Linn Co | Cynthia Cavanaugh Salvador |
| Flaherty | Co. Kerry | Linn Co | Mary Kay Kuhfittig |
| Flaherty | Co. Kerry | Pocahontas Co | Michelle Hanson |
| Flaherty | Unknown | Pocahontas Co | Gerald Flaherty |
| Flanagan | Unknown | Clinton & Clayton Cos | Jim Sazevich |
| Flannery | Unknown | Clinton Co | Jackie Baumgard |
| Flannery | Kiltullagh, Athenry, Galway | Clinton Co | Cynthia Cavanaugh Salvador |
| Flannery | Kiltullagh, Athenry, Galway | Clinton Co | Michael A Cavanaugh |
| Fleming | Piltown, Co. Kilkenny | Poweshiek Co | Patrick Fleming |
| Fleming / Flemming | King's Co / Co. Offaly | Johnson Co. | Carol Skiles |
| Flemming | Co. Roscommon | Clinton Co. | Michael J Kearney |
| Flood | Unknown | Polk Co. | Caitriona McKenna |
| Flynn | Abbeyfealle Hill, Co. Limerick | Dubuque Co. | Billie Jo Read |
| Flynn | Unknown | Allamakee Co. | Jeannie Hegeman |
| Flynn | Co. Roscommon | Crawford & Monona Cos. | Cheryl Gauthier-Williams |
| Foley | Co. Roscommon | Marshall Co | Judy Dollard |
| Foley | Unknown | Wapello Co. | Beverly Kelly |
| Foley | Wexford or Wicklow | Patrick H Crossen | |
| Foley | Co. Wexford | Muscatine Co. | Patricia Proper |
| Foley | Co. Kerry | Cass Co. | Maxine Spry Jinkerson |
| Ford | Co. Galway | Pocahontas Co | Constance Nash Nelson |
| Ford | Unknown | Allamakee Co | ModelTFord26@aol.com |
| Forey, Fury | Co. Galway | Pocahontas Co | Tonia |
| Forquer | Co. Donegal | Scott,Clinton, Ringgold Cos. | Bill Burke |
| Fox | Co. Leitrim | Tama Co. | Gary Zaruba |
| Fox | Co. Leitrim | Clinton & Plymouth Cos. | Kevin Huigens |
| Fox | Unknown | Dubuque Co | Margie Duncan |
| Freel / O'Friel | Ulster | VanBuren & Polk Cos | Mary Ackerman-Lang & Kathy Farrell |
| Fryer / Friar | Banbridge, Co Down | Scott Co. | Barbara Friar / Fryer Coyle |
| Furlong | poss Co Tyrone | Johnson & Iowa Cos | Pat Sprague |
| Gallagher | Co. Donegal | Jeanette Mahony | |
| Gallagher | Unknown | Allamakee Co | Mary Ann |
| Gallagher | Ballina, Kilmoremoy, Mayo | Clinton Co | Jack Kiesner |
| Galligan | Co. Cavan | Chickasaw Co | Tim Daly |
| Galloway | Unknown | Blackhawk Co | Alan Harker |
| Ganely | Co. Westmeath | Jones Co. | Eve Casserly |
| Gannon | Co. Roscommon | Blackhawk & Palo Alto Cos. | Dee McCormick Allen |
| Gannon | Unknown | Howard Co | Shelley Osborne |
| Gary, McGarey, Garey | unknown | Tama Co | Carol Meyer |
| Garin | Co. Limerick | Allamakee Co | Jody Howard |
| Gauley | Co. Monoghan | Cerro Gordo Co | Ruth Rogers |
| Gaughan | Belmullet, Co Mayo | Harrison Co | Charlie Rock |
| Garvey | Unknown | Fayette Co | Helen O'Malia |
| Garvey | Kilkee, Co. Clare | Scott Co | jamesfonobrien@aol.com |
| Geraghty | Co. Mayo | Allamakee Co. | AKielty@aol.com |
| Gibbon(s) | Unknown | Joe Ford | |
| Gibbs | King's Co | Jackson Co | Gerri Witte |
| Gibson | Co Down | Boone Co | Jobeth Fjell |
| Gilheaney / Gilheeney | Co. Leitrim | Scott Co | Christine Murcia |
| Gill | Offaly /King's Co | Cedar Co | Dori |
| Gillan / Gillen | Co. Sligo | Scott Co | John Marx |
| Gilleran | Co. Roscommon | Madison Co | Ed Lacey |
| Gilleran | Co. Roscommon | Madison Co | ohsuzieq46639@aol.com |
| Gilligan | Unknown | Dubuque Co | Marilyn Sobotka |
| Gillmor | Co. Sligo | Scott Co. | Janet K. Jensen |
| Gilroy | Streedagh, Sligo | Scott Co | Nancy Skelley Ashcraft |
| Glynn | poss. Co. Galway | Jones or Dubuque Cos. | Virginia Haynes |
| Godfrey | Co. Tipperary | Iowa Co. | Jeanette O'Boyle |
| Golden | Co. Cavan | Clinton Co | Jack Golden |
| Gordon | Unknown | Linn Co | Joanne |
| Gordon | Unknown | Dubuque & Cherokee Cos. | Marie Hoff |
| Gorman | Co. Sligo | Jones Co. | Gerald & Sue O'Loughlin |
| Grace | Co. Tipperary | Dubuque & Jackson Cos. | Jim Sazevich |
| Grace | Co. Kilkenny | Jackson Co. | John Hayes |
| Grady | Offaly / King's Co | Iowa Co | Pat Sprague |
| Grady / O'Grady | Co. Clare | Annette Dunford | |
| Graham | unknown | Van Buren Co | Shirley Burks Wells |
| Graham | Unknown | Marshall Co | Sharyn Streicher |
| Graham | Ballyeaston, Co. Antrim | Boone Co | Rhonda Cable |
| Graham | Rathkenny, Co. Antrim | Cedar Co | Bernie O'Brien |
| Graham | Unknown | Dubuque & Jackson Cos. | Carol Graham |
| Granger | Co. Sligo | Polk Co. | Ria Pallaris |
| Grant | Co. Tipperary | Unknown | Maureen Grant Hayes |
| Greenwood | Co. Antrim | Dubuque Co | Karla Staudt |
| Greer | Co. Antrim | Buena Vista Co | Deke Hammitt |
| Grehey | poss. Co. Cork or Waterford | Webster Co | Mary Bittick |
| Gribbon | Co. Down | Clinton Co | Dave Tague |
| Griffin | poss Co. Tyrone | Mitchell Co. | Kathleen Ryan |
| Griffin | Co. Waterford | Allamakee Co | Mary Ann |
| Griffin | Unknown | Polk Co. | Lynn Griffin Nelson |
| Griffin | Co. Tipperary | Johnson Co. | John G. Henry |
| Grimes | Co. Cork | Dubuque Co | Ron Ballard |
| Guiney | Unknown | Bremer Co | Valery Wachter |
| Gurnett | Co. Kerry | Linn Co. | Mary Kay Kuhfittig |
| Guthrie | Co. Clare | Polk Co | Nancy Baker |
| Guthrie | Unknown | Webster Co | Michael Burch |
| Hagarty | Unknown | Marshall Co | Sharyn Streicher |
| Hagarty | Co. Dublin | Butler & Scott Cos | Roger Hagarty |
| Hagarty | Co. Clare | Butler Co. | Jack Hagarty |
| Hagarty | Unknown | Greene Co. | Maureen Day Moore |
| Hahesy | Co. Waterford | Delaware Co | Beverly Hahesy Hannon |
| Halligan | Co. Louth | Jones & Webster Cos | Constance Nash Nelson |
| Halligan | Co. Louth | Dubuque & Webster Cos. | Pat Martin |
| Halligan | Co. Louth | Webster Co. | Madlyn Halligan Waffal |
| Hamilton | Unknown | Scott Co. | Betty Hamilton Marker |
| Hamilton | Co. Armagh | Potawattamie Co | Shirley Story |
| Hamilton | Co. Dublin | Allamakee & Hancock Cos | M. Patrick Roach |
| Hand | poss Co. Monaghan | Chickasaw Co | Jim Hand |
| Hand | Carrickmacross, Co. Monaghan | Allamakee, Winneshiek, Chickasaw Cos. | Larry Hand |
| Hanegan | Co. Cork | Marshall Co | Kathy.S@sbcglobal.net |
| Hanley / Handley | Co Westmeath | Adair Co | Robert Handley |
| Hanlon | Co. Louth | Dubuque Co | Patrick Carney |
| Hannan | Unknown | Dubuque Co. | cw4teach@aol.com |
| Hannegan | Unknown | Howard Co. | Lynn Logue |
| Hannegan | Unknown | Howard Co | Shelley Osborne |
| Hannegan | Co. Waterford | Howard & Winneshiek Cos. | Alicemae Abbott |
| Hannaher | Co. Mayo | Clinton Co. | Jean Kremer |
| Hannon | Co. Cavan | Clinton & Jackson Cos. | Dorothy Bishop |
| Hanrahan | Unknown | Clinton Co | John Hanrahan |
| Hanrahan | Co. Tipperary | Clinton Co. | Jean Kremer |
| Hanrahan | Co. Clare | Madison Co | Janice R. Hanrahan |
| Hanranhan | Unknown | Jackson & Clinton Cos. | Mary McDonnell Petersen |
| Hanson | Co. Westmeath | Iowa Co | Mark Hanson |
| Happer, Harper | Co. Tyrone | Muscatine Co. | Joe Harper |
| Harkin |
poss Co Cork |
Fayette & O'Brien Cos | Shawn Harkin |
| Harkin | Co. Mayo | Clinton Co | Phyllis Miller |
| Harrington |
Co Limerick |
Benton Co | Shawn Harkin |
| Harrington |
Co Cork |
Van Buren Co. | Renee Travis Reilly |
| Harrold | Unknown | Pocahontas Co | Tonia |
| Hart | Achrony, Tobercurry, Sligo | Clinton & Jones Cos. | Virginia Haynes |
| Hart | Co. Galway | Allamakee Co | Jody Howard |
| Hartigan | Co. Tipperary | Jackson & Clinton Cos. | Mary McDonnell Petersen |
| Hartnett | Co. Cork | Webster Co | Monte Leblanc |
| Hatton | Unknown | Adams Co | jimpmiller@msn.com |
| Haugh | Co. Clare | Scott, Crawford & Cass Cos. | Mike Costello |
| Hayes | Co. Tipperary | Hardin Co. | Susan |
| Hayes | Unknown | Johnson & Keokuk Cos. | Priscilla A. Schmidt |
| Hayes | Co. Tipperary | Jackson Co. | Ken Hayes |
| Hays | Co. Tipperary | Clinton Co. | Chris Hays |
| Hays | Unknown | Bremer Co | Valery Wachter |
| Head | Co. Galway | Jones & Fremont Cos. | Patricia Head Maher |
| Healey | Co. Clare or Cork | Dubuque Co. | Austin Healey |
| Healey | Co. Kildare | Allamakee Co | Jody Howard |
| Hedy | Unknown | Ringgold Co | Cindi Bomersheim |
| Heeney / Heaney | Co. Leitrim | Scott Co | Christine Murcia |
| Heffern | Co. Limerick | Hardin Co. | The Rollins Family |
| Heffron | Co. Mayo | Polk Co. | Jeanette O'Boyle |
| Heffron | Co. Galway | Monroe Co. | JMcGinn8@aol.com |
| Hegarty (O'Hegharaty) | Co Cork | Kossuth Co | Tamara Hancock |
| Heir | Co. Wexford | Dubuque Co. | Mary Kay Kuhfittig |
| Hempenstall | Co. Dublin | Fayette Co. | Michael O'Neill Johnston |
| Henderson | Co. Tyrone | Delaware Co. | Brent Henderson |
| Hendrick | Unknown | Dubuque Co | Kathy McGinty Stoneberg |
| Henry | Unknown | Winneshiek Co | Tim Daly |
| Henry | Co. Down | Page Co | Barbara Livengood |
| Henry | Co. Antrim | Clayton Co. | Michael F. O'Brien |
| Henry | Co. Roscommon | Linn Co. | John G. Henry |
| Hepenstall | Cos. Wicklow & Dublin | Wayne Co | Nada Morford |
| Hepenstall | Unknown | Cedar Co | Nan Seals |
| Hernon | Unknown | Muscatine or Jones
Co? Wy0ming, Iowa |
Bill |
| Herron | Co. Kilkenny | Harrison Co | Denise Plunkett |
| Herron | Co. Kilkenny | Boone Co. | Cathy Labath |
| Hester | Co Mayo | Palo Alto Co. | Elizabeth Hester Johnson |
| Heunik | Unknown | Buchanan Co. | Randy McGraw |
| Heyland | Co. Cork | Monroe Co. | Marilyn Coleman |
| Hickey | Co. waterford | Dubuque Co. | Jim Sazevich |
| Hier | Co. Wexford | Dubuque Co | Mary Kay Kuhfittig |
| Higgins | Co. Leitrim | Greene Co | vargasd@zianet.com |
| Higgins | Headford, Co. Galway | Dubuque & Palo Alto Co. | Patty Spotz |
| Hill | Co. Clare | Washington Co. | Al Teel |
| Hines | Unknown | Allamakee Co | Mary Ann |
| Hines | Unknown | Linn Co | Joanne |
| Hirl | Co. Donegal | Scott Co. | Gina1330fl@aol.com |
| Hogan | Co. Tipperary | Palo Alto Co | Cyndi Hailey |
| Hogan | Co. Cork | Clarke Co | MAOHogan |
| Hogan | Unknown | Pottawattamie & Fremont Cos. | Jim Stinson |
| Hogan | Unknown | Jackson Co. | Nancy Stinson |
| Horan | Unknown | Dubuque Co | Pamela Boehr |
| Horan | Co. Tipperary | Muscatine Co. | Pam Farrell |
| Holland | Co. Kilkenny | Potawattamie Co | John Fergus Shekleton |
| Hooks | Addergoole, Mayo | Clinton Co | Catherine Riley |
| Houlahan | Co. Waterford | Delaware Co | Beverly Hahesy Hannon |
| Hughes | Unknown | Mahaska & Iowa Cos. | Maxine morrison |
| Hurley / Hurly | Co. Galway or Roscommon | Clinton & Scott Cos | Robert Douglas |
| Hyde / Hide | Unknown | Jackson Co | Ellen Elliott |
| Hynes | Unknown | Calhoun Co | Bren |
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me your surnames for listing to this page!