Bachelor of Arts, Harvard, 1907, Master of Arts, 1908. Unmarried.
His plays include Salvation Nell (1908) and Romance (1913), which was made into a motion picture with Greta Garbo. While in hospital his advice was received by those in the theatrical profession as gospel. In May 1915 Sheldon narrowly missed sailing on the Lusitania"s infamous last voyage.
He had been asked by theater impresario Charles Frohman to accompany him to England.
Sheldon then declined Frohman"s offer. A 1936 lawsuit against Metro-Goldwyn-Mayer for copyright infringement claimed that the script Metro-Goldwyn-Mayer used for the 1932 motion picture Letty Lynton plagiarized material from the play Dishonored Lady by Sheldon and Margaret Ayer Barnes.
The film is still unavailable today because of this lawsuit. His life is detailed in The Manitoba Who Lived Twice by Eric Wollencott Barnes.
In this biography Barnes states that Sheldon was in love all his adult life with Doris Keane, the actress who starred in Romance in 1913.
Clubs: Harvard, Players, University (New York City).