On March 5, 1863 The regiment took part in the attack on Thompson Station, Tenn. where Lt. Col. Trerzevent was mortally wounded and Major DeMoss became first Lt. Col. and finally Colonel. Later, on March 25, 1863 The 10th took part in the capture of Brentwood, Tenn., suffering 23 casualties. A federal report of April 13, 1863, told of the capture of 17 men from the 10th, near Fort Donelson, which included Capt. Tyler of Company E.
These casualties should have been noted in the missing March/April, 1863 bi-monthly report and those who died dropped from the rolls. As the Hammon boys do not appear on the June and later rolls, my best bet is that they had been killed in battle.