Companies organized and mustered in as follows: Companies "A" and "B" at Albany, N. Y., September 28, 1863. Left State for Fortress Monroe, Va., October 14, 1863. Company "C" October 21, and left State for Fortress Monroe, October 22, 1863. Company "D" December 7, and left State for Fortress Monroe, Va., October 8, 1863. Company "E" at Riker's Island, N. Y., December 16, 1863, and left State for Fortress Monroe, Va., December 16, 1863. Company "G" at Riker's Island January 9, and left State for Fortress Monroe, Va., January 13, 1864. Company "F" at Elmira January 19. Company "H" February 8, 1864. Company "I" January 28. Company "K" February 2. Companies "L" and "M" at Auburn January 26, 1864. All moved to Fortress Monroe, Va. Regiment on duty at Fortress Monroe, Yorktown and Gloucester Point, Va., till June, 1864, as Heavy Artillery and Infantry. Companies "E" and "H" attached to 1st Brigade, 3rd Division, 10th Army Corps, Army of the James, July to December, 1864; then to Separate Brigade at Fort Pocahontas till June, 1865. Companies "A," "B." "C," "F," "G," "K" and "M" attached to 2nd Brigade, 1st Division, 10th Army Corps, Army of the James, July 27 to December 3, 1864. 2nd Brigade, 1st Division, 24th Army Corps, to March, 1865. 2nd Brigade, 1st Division, 10th Army Corps, Dept. of North Carolina, to July, 1865. Company "L" attached to 2nd Brigade, 1st Division, 10th Army Corps, to December, 1864; thence to Artillery Brigade, 24th Army Corps, to July, 1865. 3rd Brigade, DeRussy's Division, 22nd Army Corps, to August, 1865.

SERVICE:
Engagement between White House and Army of the James while laying Army telegraph lines May 29, 1864. Action at West Point, Va., June 20 (Cos. "D," "E," "H," "I," "L" and "M"). Gloucester Point June 23. Siege operations against Petersburg and Richmond July 27, 1864, to January 3, 1865. Dutch Gap Canal August 8-19. Signal Hill August 13. Action at Dutch Gap Canal August 16 (Detachment). Strawberry Plains August 14-18. Chaffin's Farm, New Market Heights, September 28-30. Charles City Cross Roads October 1. Darbytown and New Market Roads October 7. Darbytown Road October 13. Fair Oaks October 27-28. In trenches north of the James River till January, 1865. 2nd Expedition to Fort Fisher, N. C., January 4-15, 1865. Assault and capture of Fort Fisher January 15. Cape Fear Intrenchments February 11-13. Fort Anderson February 18-20. Capture of Wilmington February 22. Near Wilmington February 22-23. Duty at Wilmington, Smithville and Goldsburg, N. C., till July. Regiment concentrated at Washington, D. C., July, and duty there till August. Mustered out August 21, 1865.
Regiment lost during service 42 Enlisted men killed and mortally wounded and 2 Officers and 284 Enlisted men by disease. Total 328.