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.
George Armstrong Custer at any other time on the battlefield, and instantly see him leading the way into danger." Some have claimed Custer's leadership in battle as reckless or foolhardy. However, he "meticulously scouted every battlefield, gauged the enemies weak points and strengths, ascertained the best line of attack and only after he was satisfied was the 'Custer Dash' with a Michigan yell focused with complete surprise on the enemy in routing them every time." On June 30, 1863, Custer and the First and Seventh Michigan Cavalry had just passed through Hanover, Pennsylvania, while the Fifth and Sixth Michigan Cavalry followed about seven