The history of the Legion began on July 17, 1919 when a meeting was held in order to form the Tignish Branch of the Great War Veterans Association. Gerald McCarthy was appointed Interm chairman and Frank Richard as secretary.
On September 24, 1919 the Provincial Command of the Great War Association formed in Charlottetown. The branch involved Charlottetown, Summerside, Alberton, Montague, O'Leary, Souris, Georgetown and Tignish. There were 800-900 members.