I believe this is the William Henry Kilpatrick of Kentucky see https://civilwardata.com/active/hdsquery.dll?SoldierHistory?U&1331003 “Enlisted on 9/25/1861 at Crittenden County, KY as a Private. Per familysearch bio: When William Henry Kilpatrick was born on 22 August 1842, in Kentucky, United States, his father, Wesley Milton Kilpatrick, was 21 and his mother, Mary Catherine Elson, was 18. He married Virginia Ann Franklin on 13 December 1865, in Johnson, Illinois, United States. They were the parents of at least 4 sons and 5 daughters. He lived in Hurricane, Crittenden, Kentucky, United States in 1880 and Webster Number 5 Precinct, Pope, Illinois, United States in 1910. He died on 25 December 1911, in Pope, Illinois, United States, at the age of 69, and was buried in Roland Cemetery, Webster Number 5 Precinct, Pope, Illinois, United States.
Possibly a conflation of two men similar names