In March 1915, he asked for and got a discharge, and on April 3 enlisted in the First Newfoundland regiment[1] which was about to cross the Atlantic and join up with the British army.
The first, Trenching at Gallipoli is subtitled A Personal Narrative of a Newfoundlander with the Ill-fated Dardanelles Expedition and was dedicated to Professor Charles Townsend Copeland.
In addition to these books he published literary analyses and criticism, as well as setting up the John Gallishaw School of Creative Writing in Cambridge, the town where Harvard is situated; the institution moved to New York City around 1927.
He worked in Hollywood as a scriptwriter and teaching screenwriters for Metro-Goldwyn-Mayer (MGM), Columbia Pictures, Paramount and Universal Studios.
He worked with Francis Scott Fitzgerald and became friendly with Clark Gable, Robert Young, Cary Grant, Jeanette MacDonald and Nelson Eddy.