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.
Little Bighorn River battle by the History Channel. The alternative name usage in the 1800s by the Sioux, Cheyenne and Crow of "Greasy Grass" for the "Little Bighorn" is reflected in current day nomenclature at the Little Bighorn battlefield. A prominent ridge on the Little Bighorn Battlefield that overlooks the eastern banks of the Little Bighorn River has retained the name of Greasy Grass Ridge, and is the site of critical events of the battle. In Lakota, the Little Bighorn River is called . Upstream from the point where the Little Bighorn issues from the Little Horn Canyon canyon, the stream flow is