Batteries E - M, 1st Wisconsin Heavy Artillery Regiment

Batteries B, C and D served outside the Eastern Threater. The regiment (including Batteries B-D) lost 4 enlisted men killed or mortally wounded and 2 officers and 77 enlisted men by disease.

1864
September - October	Organized and ordered to Washington, D.C. Attached to 3rd Brigade, DeRussy's Division, 22nd Army Corps
December	Attached to 4th Brigade, DeRussy's Division, 22nd Army Corps. Assigned to duty in the Defenses of Washington, D. C.: Company E at Fort O'Rourke Companies F and I at Fort Ellsworth Company G at Forts Lyon and Ellsworth Companies H and K at Fort Lyon Company L at Fort Willard Company M at Forts Lyon, Weed and Farnsworth
1865
June 26	Mustered out