Background
John Mapes Adams was born on October 11, 1871 in Haverhill, Massachusetts.
John Mapes Adams was born on October 11, 1871 in Haverhill, Massachusetts.
He attended Phillips Exeter Academy.
His birth name was George Lawrence Day. He served in the Marine Corps under the alias of John Mapes Adams. On July 13, 1900, while a Sergeant in the United States Marine Corps he "distinguished himself by meritorious conduct" in battle at Tianjin, China (then Tientsin).
He re-enlisted in Panama on October 11, 1902.
As of May 20, 1903 he had been promoted to the rank of gunnery sergeant and was hospitalized in Washington, District of Columbia Adams was buried at the Cypress Hills National Cemetery in Brooklyn, New York, Section 2, Grave 8262.