Source: http://www.army.mil/cmh/Default.htm

Note: This is not my ancestry. I have NO additional information. I am just passing along information that may be useful.

HYMER, SAMUEL

Rank and organization: Captain, Company D, 115th Illinois Infantry. Place and date: At Buzzard's Roost Gap, Ga., 13 October 1864. Entered service at: Rushville, Schuyler County, Ill. Born: 17 May 1829, Harrison County, Ind. Date of issue: 28 March 1896. Citation: With only 41 men under his command, defended and held a blockhouse against the attack of Hood's Division for nearly 10 hours, thus checking the advance of the enemy and insuring the safety of the balance of the regiment, as well as that of the 8th Kentucky Infantry, then stationed at Ringgold, Ga.