Thomas Mower McDougall subsequently he was appointed Captain, 15 Dec 1875. In 1876 Captain McDougall commanded Company B and accompanied the 7th Cavalry Regiment, under command of Lt. Col. George A. Custer in its fateful departure from Fort Abraham Lincoln to participate in what became known as the Great Sioux War of 1876, which culminated in the Battle of the Little Bighorn, also known as Custer's Last Stand which occurred on June 25–26, 1876. On May 17, 1876, the 7th Cavalry left their base at Fort Abraham Lincoln near present day Mandan, North Dakota to join in a campaign against the Sioux Indians.
The Great Sioux Massacre shoots so he will not have to starve on an Indian Reservation. Received by his commanding officer Lt. Col. George Armstrong Custer, Benton is gently told his first encounter with the enemy has been disastrous but Custer confirms that he did the right thing by following Dakota's advice not to pursue the hostile party. Custer invites Benton to a dress dance held at the fort that evening and dismisses the distraught Mr. Turner by telling him that he will visit the hostile Indians who abducted his wife in the morning. Benton's fiancee Caroline Reno is at the fort, but their