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.
Goes Ahead Sioux and Cheyenne who were expected to be on either Rosebud Creek or in the Little Bighorn valley. The six Crow scouts were sent with Custer because they were familiar with the Rosebud and Little Big Horn drainage. On June 24, 1876 the Crow scouts were ranging ahead, and they sent back word to Custer that the trail of the Sioux/Cheyenne encampment had moved from the Rosebud valley toward the valley of the Little Bighorn. At first light on June 25, 1876, the morning of the battle, the Crow scouts were at a high point (later known as the Crows