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 total US casualty count included 268 dead and 55 severely wounded (six died later from their wounds), including four Crow Indian scouts and at least two Arikara Indian scouts. Public response to the Great Sioux War varied in the immediate aftermath of the battle. Custer's widow (Libbie Custer) soon worked to burnish her husband's memory, and during the following decades Custer and his troops came to be considered iconic, even heroic, figures in American history. The battle, and Custer's actions in particular, have been studied extensively by historians. Little Bighorn Battlefield National Monument honors those who fought on both sides.