Identity:
Samuel Breck, Jr was a professional soldier.
Life:
He was a classmate of Whistler at West Point, in fact the last surviving member of the class. He served in the Adjutant General's Office, retiring as Adjutant General of the US Army in 1898.
Bibliography:
Cullum Memorial Edition, Register of Graduates and former cadets, United States Military Academy, West Point, 1980.