65th Indiana Infantry Regiment
The 65th Regiment Indiana Infantry, was organized in Princeton and recruited throughout the southern Indiana counties to fight in the American Civil War.
Organization
Regimental commanders
| Name | Date of Commission | Notes |
| John W. Foster | August 18, 1862 | Resigned March 10, 1864, due to disability. Re-entered service as colonel of the 136th Regiment |
| Thomas Johnson | March 11, 1864 | Honorably discharged as lieutenant colonel on August 29, 1864, due to disability. |
| John W. Hammond | September 7, 1864 | Mustered out with regiment as lieutenant colonel. |
Regimental units
- Company A - Men primarily recruited from Gibson and Posey counties
- Company B - Men primarily recruited from Gibson County
- Company C - Men primarily recruited from Knox County
- Company D - Men primarily recruited from Spencer County
- Company E - Men primarily recruited from Warrick County
- Company F - Men primarily recruited from Martin County
- Company G - Men primarily recruited from Gibson, Pike and Posey counties
- Company H - Men primarily recruited from Vanderburgh and Warrick counties
- Company I - Men primarily recruited from Daviess County
- Company K - Men primarily recruited from Dubois County
Command structure