Thomas Weir (American soldier) Thomas Weir (American soldier) Captain Thomas Benton Weir (b. September 28, 1838 -– d. December 9, 1876) was an officer in the 7th Cavalry Regiment (United States), notable for his participation in the Battle of the Little Bighorn, also known as Custer's Last Stand. Weir served under General George Armstrong Custer during the American Civil War, and after the war continued serving with Custer up to the famous battle in 1876. During the Little Bighorn Battle, Weir disobeyed orders to remain in a defensive position at Reno Hill and led a cavalry group that attempted to come to Custer's aid.
Great Sioux War of 1876 be given to the resisting northern bands. In October 1876, Army troops surrounded the villages of Red Cloud and Red Leaf. They arrested and briefly confined the leaders, holding them responsible for failing to turn in individuals arriving in camp from hostile bands. The US sent another commission to the agencies. According to historian Colin Calloway, "Congress passed a law extinguishing all Lakota rights outside the Great Sioux Reservation." Colonel Ranald S. Mackenzie and his Fourth Cavalry were transferred to the Department of the Platte following the defeat at the Little Bighorn. Stationed initially at Camp Robinson, they formed the