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.
Battle of the Little Bighorn in 1876, the Lakota and the Cheyenne held a Sun Dance that was also attended by a number of "Agency Indians" who had slipped away from their reservations. During a Sun Dance around June 5, 1876, on Rosebud Creek in Montana, Sitting Bull, the spiritual leader of the Hunkpapa Lakota, reportedly had a vision of "soldiers falling into his camp like grasshoppers from the sky." At the same time US military officials were conducting a summer campaign to force the Lakota and the Cheyenne back to their reservations, using infantry and cavalry in a so-called "three-pronged approach". Col. John Gibbon's