Named in honour of Hume Cronyn (b.1864-08-28 in London, Canada, d.1933-06-19). Cronyn received a B.A. in 1882 and an LL.B. in 1889 from the University of Toronto and served in the Canadian military during the North-West Rebellion. He was a member of Parliament in Ottawa during World War I. Later, Cronyn rose to the rank of Major in the City of London Regiment. Cronyn worked from 1889 to 1907 in his father's law firm, then was appointed manager of the Huron and Erie Mortgage Corporation, and was President of that company from 1926 until 1933. Huron and Erie Mortgage Corporation eventually became Canada Trust and is now TD Canada Trust. In 1920, Cronyn was chair of a committee of the Canadian government that recommended the establishment of Canada's National Research Council, which has supported all branches of science in Canada ever since. After his death, his widow, Frances (née Labatt), donated funds for the construction of the Hume Cronyn Memorial Observatory on the campus of the University of Western Ontario, featuring a 25cm refractor, which was opened in 1940 and is still in use today. Cronyn's fifth child, Hume Cronyn, Junior, achieved fame as an actor on stage and screen.
Name proposed and citation prepared by Peter Jedicke and Robert Jedicke.

Reference: MPC 45337