- Company A - Chautauqua County
- Company B - Erie County
- Company C "Fremont Rifles" - Westchester County
- Company D - Erie County
- Company E - Erie County
- Company F - Erie County
- Company G - Chautauqua County
- Company H - Niagara County
- Company I - Chautauqua County
- Company K - Chautauqua County
- Mustered in: 9/18/61 at Buffalo
- Mustered out: 10/18/64 at Buffalo
- Daniel D. BIDWELL
- Erastus D. HOLT
- George H. SELKIRK
Battle-Related
KILLED
Officers 12
Enlisted 84
WOUNDED DIED
Officers 4
Enlisted 42
WOUNDED RECOVERED
Officers 14
Enlisted 230
MISSING
Officers 0
Enlisted 44
TOTAL 430
Died of disease and other causes
Officers 5
Enlisted 152
As POW 23
TOTAL 180
TOTAL CASUALTIES: 610