Lieutenant George Buchanan Foster was a flying ace and credited with seven aerial victories that earned him a Distinguished Flying Cross. While serving as a pilot with the 24 Squadron in France, he destroyed an observation balloon, two Pfalz D.III fighters, a Fokker Triplane, and a Hannover two-seater. He also helped destroy a Hannover and cause the pilot of a Fokker to lose control.

After the war, he returned to his hometown, Montreal, and married Barbara Helen MacDougall. He studied law at McGill University and later became a King’s Counsel. He also became a principal in his law firm, Foster, Hannen, Watt, Leggatt, and Colby.

In 1946 he was appointed to the Legislative Council of Quebec and served there until 1968.

He also served as president of the Children's Memorial Hospital of Montreal and served on boards for many companies, including Brompton Pulp & Paper, Sherbrooke Machinery, and Combustion Engineering Superheater.

He died on June 3, 1974 in Knowlton, Quebec.

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