| I'Anson International: Worldwide study including variants Ianson and Janson. Registered with the Guild of One-Name Studies, number 2798. |
| Iampietro Family: Ancestral history of Joseph Iamartino of Thompson, CT USA. |
| Iannetta Family: Ancestral tree including surnames Conte, D'Onofrio, Venditti, Rosati and D'Angelo. |
| Iati: Family Tree of Anthony P Iati as compiled by Robert A Iati. |
| Iddison: Pre 1900 ancestral history, includes pedigree, descendant charts and family lore from 19th century Yorkshire. Compiled by Dave Brown. |
| Iggulden: Descendants of the deYgolvyndenne name. Includes variants Iggleden, Igglesden, Eggleden, Egglesden and Higglesden. Compiled by Wayne Iggulden from Surrey, BC CAN. |
| Imrie: Descendants of Alexander Imrie of Scotland, plus associated Wampach line. |
| Ingersoll: Researching the name and its application including the variant Ingerson. Features database, history, arms and associated links and resources. |
| Inglis: A Journey Through Time: Family history of Airlie Marion Inglis including the surnames Moore, Doyle, Griffith, Halliday, Barton and Stedman. Features origin and subsequent arrival in Australia. |
| Ingraham: Berkshire Connection: Ancestral history including Hall, Pike and Evzerow from Bershire County and Pittsfield, MA to Rensselaer County NY, USA. Compiled by Lois M Spatuzzi. |
| Ireton Family: Resource to share Ireton pedigree data and general information. Includes bulletin board for mutual exchange. |
| Irons-Rogers: Family history of Emily Irons Rogers from Geneva, IL USA. |
| Ironside: Descendants of Alexander Ironside (b.1780) Fyvie, Aberdeenshire, Scotland. |
| Iseli: History of the name and variants Iseli, Eseli, Esely, Esley, Isaly, Isel, Isely, Isley, Islie, Izel, Yselle and Yssel. Site is maintained by Erich Iseli and is available in German, French, English and Afrikaan. |
| Isley: Our Family History: Records pertaining to the descendants of Malachi Isley (b.1725). Includes census data for 1790 through to 1920; cemetery listings including birth and death dates; and tombstone and family photographs. |
| Iturburu Family Tree: Ancestral history including origin of name. Compiled by Liz Kelly. |
Classical
