| Last Name | First Name | Description | Folder | Acc. No. |
| Iden | Marie | ca. 1905 | School-City-Bourbon | #2982 |
| Iden | Ray | 1896 | School-City-Bourbon | |
| Iler | H. | Freshman 1922 | School-City-Argos | #3044D |
| Iler | Harold | ca. 1926 | School-City-Argos | #3225A-1 |
| Iler | Margaret | ca. 1930 | School-County-Walnut Twp. | |
| Imhoff | John | 1931 Gr. Outdoors | School-City-Ply.-Washington | |
| Inbody | Audrey | 3rd gr. 1938-9 | School-City-Ply.-Washington | |
| Inbody | Treva | A | School-County-West Twp. | |
| Inbody | Treva | 1928 West | School-County-West Twp. | #5729A |
| Ingerham | Leon | 7th Gr. 1941-42 | School-City-LaPaz | #5838C |
| Ingerham | Paulus | 1st Gr. 1939-40 | School-City-LaPaz | |
| Ingle | Dale | 7th and 8th 1933-4 | Schools-City-Inwood | #1729C |
| Inks | Bobbie | Kind. 1972-3 P.M. | Schools-City-Ply-Jefferson | #6206J |
| Inks | Charles | 3rd gr. 1928-9 | School-City-Ply.-Washington | #2626E |
| Inks | Charles | 4th gr. 1929=30 | School-City-Ply.-Washington | 2626D |
| Inks | Floyd | Shawtown W 17th | School-County-Union Twp. | |
| Inks | Gordon | Reunion class of 1939 | School-City-Plymouth-Lincoln | |
| Inks | Harold | 1932 boys | School-City-Ply.-Washington | |
| Inks | Iva | Rutland 1904 | School-County-Union Twp. | |
| Inks | Larry W. | 5th Gr. 1955-6 | Schools-City-Ply-Jefferson | #6541H |
| Inks | Lester | Rutland 1904 | School-County-Union Twp. | |
| Inks | miki | Kind. 1972-3 P.M. | Schools-City-Ply-Jefferson | #6206J |
| Inks | Woodrow | Class of 1933 | School-City-Plymouth-Lincoln | |
| Inman | Claire | Class of 1951 | School-city-Tyner | |
| Inyard | Betty Lou | 1933 Donaldson | School-County-West Twp. | |
| Inyard | Betty Lou | Donaldson | School-County-West Twp. | #5889C |
| Irene | Irene | B | School-County-Green Twp. | |
| Irving | Henry | Washington 1915 | School-County-Union Twp. | #5756A |
| Irving | Richard | Washington 1915 | School-County-Union Twp. | #5756A |
| Irwin | Beth | 1957-8 | School-City-Ply.-Washington | #6034E |
| Irwin | Betty | 1942 play cast | School-City-Ply.-Washington | |
| Irwin | Betty | play cast 1942 | School-City-Ply.-Washington | |
| Irwin | Dick | 7th & 8th gr. 1944-5 | School-County-Green Twp. | |
| Irwin | Gene | B | School-County-Green Twp. | |
| Irwin | Gene | 7th & 8th gr. 1945-6 | School-County-Green Twp. | |
| Irwin | Gene | 2nd Gr. 1939-40 | School-County-Green Twp. | |
| Irwin | Gene | 3rd Gr. 1940-1 | School-County-Green Twp. | |
| Irwin | Gene | 4th Gr. 1941-2 | School-County-Green Twp. | |
| Irwin | Gene | 5th Gr. 1942-3 | School-County-Green Twp. | |
| Irwin | Melvin | 5th & 6th 1939-40 | School-County-Green Twp. | |
| Irwin | Melvin | 8th gr. 1941-2 | School-County-Green Twp. | |
| Irwin | Melvin | 1st & 2nd gr. 1935-6 | School-County-Green Twp. | |
| Irwin | Melvin | 4th & 5th 1937-8 | School-County-Green Twp. | |
| Irwin | Melvin | 3rd Gr. 1937-8 | School-County-Green Twp. | |
| Irwin | Melvin | 5th & 6th 1938-9 | School-County-Green Twp. | |
| Irwin | Melvin | 1st & 2nd 1934-5 | School-County-Green Twp. | |
| Irwin | Melvin | 5th & 6th gr. 1939-40 | School-County-Green Twp. | |
| Irwin | Melvin | 7th & 8th gr. 1946-7 | School-County-Green Twp. | |
| Irwin | Melvin | 1941-2 | School-County-Green Twp. | |
| Irwin | Nyla | 7th & 8th 1940 | School-County-Green Twp. | #2424-1 |
| Irwin | Nyla | 7th & 8th 1950-51 | School-County-Green Twp. | #2424-2 |
| Irwin | Nyla | 1946-7 | School-County-Green Twp. | #3225A-11 |
| Irwin | Roberta | 3rd Gr. 1955 | School-City-Plymouth-Webster | |
| Irwin | Sally | 2nd. Gr. 1958 | School-City-Plymouth-Webster | |
| Irwin | Sally | 4th Gr. 1960-1 | School-City-Plymouth-Webster | |
| Irwin | Sally | 1st Gr. 1951 | School-City-Plymouth-Webster | SBT #431 |
| Irwin | Sally | 3rd Grd. 1960 | School-City-Plymouth-Webster | |
| Isley | Eric | 1968 group | School-City-LaPaz | #5280H |
| Isom | Bill | 5th and 6th 1942-3 West Twp. | School-County-West Twp. | #6586C |
| Isom | Don | West 1957 | School-County-West Twp. | |
| Isom | Jeff | Kind. 1968-9 A.M. | Schools-City-Ply-Jefferson | #6202B |
| Isom | Michael | 3rd Gr. 1973-4 | School-City-Ply-Wash #2 | #5897E |
| Ittu | Elizabeth | 1930-1 | School-County-West Twp. | |
| Ittu | Elizabeth | 1930-1 West | School-County-West Twp. | |
| Ittu | George | 1930-1 | School-County-West Twp. | |
| Ittu | George | 1930-1 West | School-County-West Twp. | |
| Ittu (Ito?) | George | 9th gr. 1930 | School-County-West Twp. | #5729C |
| Ives | R. J. | Class of 1951 | School-City-Culver | |
| Izdepski | Jean Ellen | 1st Gr. 1939-40 | School-City-LaPaz |