- Company A - NYC
- Company B - Newburyport, MA
- Company C - NYC
- Company D - NYC
- Company E - NYC
- Company F - NYC
- Company G - Milford, MA
- Company H - West Cambridge, MA
- Company I - NYC
- Company K - Lawrence, MA
- Mustered in: June 21-July 1, 1861 at Yonkers
- Mustered out: 6/27/65 near Washington, DC
- John S. COCKS
- Edward J. RILEY
- Thomas W. EGAN
Battle-Related
KILLED
Officers 8
Enlisted 151
WOUNDED DIED
Officers 2
Enlisted 76
WOUNDED RECOVERED
Officers 41
Enlisted 710
MISSING
Officers 2
Enlisted 256
TOTAL 1245
Died of disease and other causes
Officers 3
Enlisted 122
As POW 47
TOTAL 172
TOTAL CASUALTIES: 1417