Fisher received a B.A. from
Victoria University in Toronto in 1935. He then attended the
University of Toronto Medical School, where he received his M.D. in 1938. He continued training at
Henry Ford Hospital in Detroit and
Royal Victoria Hospital in
Montreal. During World War II, Fisher served as a surgical lieutenant in the
Royal Canadian Navy, and was aboard
HMS Voltaire when it was
sunk by German gunfire in 1941 off the coast of
Cape Verde. Fisher was captured and spent 3.5 years in a German prison camp, until late 1944 when he was released. Following his return to Canada, Fisher began his residency at
McGill University at the Royal Victoria Hospital. In 1946 he worked as a Fellow at the
Montreal Neurological Institute of
McGill University. He then began working at
Massachusetts General Hospital on the stroke service, beginning a long career in stroke neurology. ==Contributions==