|Birth Day||March 18, 1879|
|Age||140 YEARS OLD|
|Died On||Nov 16, 1966 (age 87)|
Canadian medical Doctor whose greatest achievement was inventing the gas mask.
After witnessing the atrocities of poison gas in World War I, he came up with the idea for the gas mask.
He studied Medicine at Methodist College and McGill University.
He married Eleanora Thompson in 1902.
He and George Melford both attended McGill University.