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.
Thomas Bailey Marquis the property. He began publishing his own pamphlets for sale at the museum and the Custer battlefield. Titles in 1933 were: "Sketch Story of the Custer Battle", "She Watched Custer's Last Battle", "Custer Soldiers Not Buried", and "Which Indian Killed Custer?", in 1934 "Sitting Bull and Gall the Warrior", and in 1935 "Two Days After the Custer Battle". In December 1933, Marquis began his last book, "Keep the Last Bullet for Yourself: The True Story of Custer's Last Stand". Marquis considered this his most important work – the subject was his central interest and he regarded much of his previous