Photograph of the gravesite of Captain Hamilton Coolidge, France, circa 1918-1919.Inscription on marker: "Capt. Hamilton Coolidge. Killed in Action Oct 27, 1918. 94th Aero USA."
Certificate of Commission issued to Hamilton Coolidge, September 29, 1917. Acknowledges Coolidge's receipt of a commission to be 1st Lieutenant in the Aviation Section of the Signal Officers' Reserve Corps of the Army of the United States.
Newspaper clipping, "Coolidge of Boston new aviator ace," from unidentified publication, circa 1918. Commemorates Lieutenant Coolidge achieving Ace status. Also mentions Eddie Rickenbacker, Frank Luke, and J. C. Vascoucelles.