Thomas Custer in the Yellowstone Expedition of 1873, where he fought in the Battle of Honsinger Bluff, and the Black Hills Expedition of 1874. Custer was appointed captain in 1875 and given command of Company C of the 7th Cavalry. In 1874, at the trading post at Standing Rock Agency, Custer participated in the arrest of chief Rain-in-the-Face (Lakota), suspected in the 1873 murder of Dr. John Honsinger. During the 1876 Little Bighorn campaign of the Black Hills War, he served as aide-de-camp to his older brother Lt. Col. George A. Custer and died with his brother on June 25, 1876. Lt.
George Armstrong Custer Volunteer Service: February 1, 1866<br> Lieutenant Colonel, 7th Cavalry: July 28, 1866 (killed at the Battle of the Little Bighorn, June 25, 1876)<br> On June 3, 1865, at Sheridan's behest, Major General Custer accepted command of the 2nd Division of Cavalry, Military Division of the Southwest, to march from Alexandria, Louisiana, to Hempstead, Texas, as part of the Union occupation forces. Custer arrived at Alexandria on June 27 and began assembling his units, which took more than a month to gather and remount. On July 17, he assumed command of the Cavalry Division of the Military Division of the Gulf