US Army Center
U.s. Army Center of Military History: William Eustis
This site details all of the offices held by William Eustis and provides a portrait of him. From the 1992 version of the Secretaries of War and Secretaries of the Army book.
Curated OER
Portrait, William Eustis
This site details all of the offices held by William Eustis and provides a portrait of him.