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.
Battle of the Little Bighorn relieve pressure on Reno's detachment (according to the Crow scout Curley, possibly viewed by both Mitch Bouyer and Custer) by withdrawing the skirmish line into the timber on the edge of the Little Bighorn River. Had the U.S. troops come straight down Medicine Tail Coulee, their approach to the Minneconjou Crossing and the northern area of the village would have been masked by the high ridges running on the northwest side of the Little Bighorn River. That they might have come southeast, from the center of Nye-Cartwright Ridge, seems to be supported by Northern Cheyenne accounts of seeing the approach