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 of a eulogy for Quentin Roosevelt, circa 1918. Written by Reverend Endicott Peabody (1857-1944), an American Episcopal priest and founder of Groton School, which was attended by many members of the Roosevelt family.
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."