4th New York Heavy Artillery Company H
Jasper Warner is noted in the "Pioneer History of Orleans County" as having served with the 4th New York Heavy Artillery.
This unit actually was quite active in battle.
See for instance: http://www.civilwararchive.com/Unreghst/unnyart1.htm#4threg
Jasper's Company H would have gone to join the rest of the unit in Washington, D.C., where they remained until March of 1864.
After this, they participated in the Rapidan Campaign. This included action in:
- Battle of the Wilderness, May 5-7
- Spottsylvania, May 8-12
- Piney Branch Church (May 8)
- Laural Hill (May 10)
- Spottsylvania Court House (May 12-21)
- Landron's Fam (May 18)
- North Anna River (May 23-26)
- Totopotomoy (May 28-31)
- Cold Harbor (June 1-12)
- en route to Petersburg (June 16-18)
The Siege of Petersburg also saw plenty of action:
- Jerusalem Plank Road, Weldon Railroad (June 22-23, 1864)
- Deep Bottom (July 27-28)
- Strawberry Plains, Deep Bottom (August 14-18)
- Ream's Station (August 25)
- Poplar Springs Church, Peeble's Farm (Sep 29 - Oct 2)
- Boydton Plank Road, Hatcher's Run (Oct 27-28)
- Reconnaisance to Hatcher's Run (Dec 9-10)
- Dabney's Mills, Hatcher's Run (Feb 5-7, 1865)
- Watkin's House (March 25)
The 4th NY Heavy was also present until the end at Appomattox:
- Hatcher's Run / Boydton Road / White Oak Road (March 31)
- Sutherland Station and fall of Petersburg (April 2)
- Pursuit of Lee (April 3-9)
- Amelia Springs (April 5)
- Sailor's Creek (April 6)
- Farmville (April 7)
- Appomattox Court House (April 9)
- Surrender of Lee and his Army
From May 2-12, the 4th NY Heavy marched back to Washington DC. Where they remained until Jasper mustered out, serving in the defense of the Capitol.
During this time 8 Officers and 108 men were killed or mortally wounded in combat. Another 4 officers and 334 enlisted men were killed by disease. Total losses: 454 men.