Dick Urbaniak is right -- Jesse R. Elrod seems to have spent most of the war in hospitals. He was reported absent sick on most of the company muster rolls. One record states that he received a clothing issue while in a hospital in February 1863. He survived the war -- paroled at Jackson, Mississippi, on May 13, 1865, apparently as a hospital patient.
He didn't serve as a chaplain. He enlisted as a drummer, but was replaced by another soldier because of his lengthy absence in the hospital, and was reduced to private.