| Name | Date | Misc. Info. | Sex | Birth Place | Residence | Parents | Source |
| IDE, Rachel | 17 Mar 1880 | F | Handy | Handy | John & Trophenia Ide | LCB 2-130 | |
| IDE, Vinia | 27 Oct 1883 | M | Conway | Conway | Ira & Clara Ide | LCB 2-197 | |
| INGERSOL, Frank | 5 Oct 1881 | M | Tyrone | Tyrone | Charles & Mary Ingersol | LCB 2-149 | |
| INGERSOL, Gracie | 3 Oct 1883 | F | Tyrone | Tyrone | Charles & Mary Ingersol | LCB 2-207 | |
| INGLES, Spencer | 30 Oct 1887 | M | Unadilla | Unadilla | John & Clara Ingles | LCB 2-283 | |
| INGLLS, Blanche L. | 2 Sep 1885 | F | Unadilla | Unadilla | Charles & Corra Inglls | LCB 2-240 | |
| IRISH, Roy | 16 Jun 1886 | M | Unadilla | Unadilla | John and Jane Irish | LCB 2-268 | |
| ISHAM, Mable | 6 Jul 1882 | F | Pinckney | Pinckney | Frank & Esther Isham | LCB 2-194 | |
| ISHAM, Roy | 30 Nov 1885 | M | Cohoctah | Cohoctah | Frank & Esther Isham | LCB 2-250 | |
| ISMAY, Max | 27 Jun 1885 | M | Howell | Howell | Samuel & Sarah Ismay | LCB 2-248 | |
| ITSELL, Beulah | 16 Aug 1890 | F | Marion | Marion | Paul C. & Sarah J. Itsell | LCB 3-24 | |
| ITSELL, Henry | 2 Oct 1889 | M | Genoa | Genoa | Charles E. & Katie Itsell | LCB 2-331 | |
| ITSELL, Manley | 25 Jan 1885 | M | Marion | Marion | Paul & Sarah Itsell | LCB 2-258 | |
| ITSELL, Mary | 13 Oct 1880 | F | Marion | Marion | Paul C. & Sarah J. Itsell | LCB 2-133 | |
| ITSELL, Mary | 2 Feb 1883 | F | Genoa | Genoa | Charles & Kate Itsell | LCB 2-198 | |
| ITSELL, Paul C. | 1 Mar 1887 | M | Marion | Marion | Paul C. & Sarah S. Itsell | LCB 2-300 | |
| IVES, Edna May | 15 Oct 1885 | F | Unadilla | Unadilla | Homer G. & Katie Ives | LCB 2-239 | |
| IVES, Jennie D. | 18 May 1887 | F | Unadilla | Unadilla | Homer & Kattie Ives | LCB 2-284 | |
| IVES, Mabel L. | 10 Feb 1881 | F | Unadilla | Unadilla | Frank & Mary E. Ives | LCB 2-149 | |
| IVES, Roy | 13 Mar 1889 | M | Unadilla | Unadilla | Homer G. & Katie Ives | LCB 3-6 | |
| IVES, Wirt G. | 30 Mar 1882 | M | Unadilla | Unadilla | Homer G. Ives & Katie Godfrey | LCB 2-151 |