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.
7th Cavalry Regiment was Lt. Col. Brice C. W. Custer, the grand-nephew of former commander George Armstrong Custer. 7th Cavalry Regiment was reorganized under a new table of organization and equipment on 25 March 1949, when the troops were once again designated as companies. The 7th Cavalry fought in the Korean War's bloodiest battles. These include Hwanggan, Poksong-Dong, Kwanni, and Naktong River Defense (Battle of Pusan Perimeter). When the 1st Cavalry Division attacked north, the 7th Cavalry was in front, smashing 106 miles behind enemy lines in an historic 24 hours. Three more Presidential Unit Citations were added to the colors. In the