John D. Ketchum Canadian Psychologist
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John D. Ketchum is a member of the following lists: 1962 deaths, University of Toronto alumni and 1893 births.
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Details
| Birthday |
30th November, 1892
|
| Died |
1962
|
| Nationality |
Canadian
|
| Occupation |
Psychologist
|
John Davidson Ketchum (1893–1962) was a Canadian psychologist, author, and professor at the University of Toronto.
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