Joseph Aman may have changed his last name, or spelling was lost during civil war. There was a Joseph Amon born to Pleasant Amon. One of three brothers. Two of the brothers joined the 143 Ohio Inf. Of one of them, I am a decendant. We can find no other information on Joseph Amon, other than he married Ann Henry on no date. Joseph was Born 5 Jult 1834. Hope this Helps.