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:

The Siege of Petersburg also saw plenty of action: The 4th NY Heavy was also present until the end at Appomattox: 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.