Title and statement of responsibility area
Title proper
Zavitz, E.J.
General material designation
Parallel title
Other title information
Title statements of responsibility
Title notes
Level of description
File
Reference code
Edition area
Edition statement
Edition statement of responsibility
Class of material specific details area
Statement of scale (cartographic)
Statement of projection (cartographic)
Statement of coordinates (cartographic)
Statement of scale (architectural)
Issuing jurisdiction and denomination (philatelic)
Dates of creation area
Date(s)
Physical description area
Physical description
Publisher's series area
Title proper of publisher's series
Parallel titles of publisher's series
Other title information of publisher's series
Statement of responsibility relating to publisher's series
Numbering within publisher's series
Note on publisher's series
Archival description area
Name of creator
Biographical history
Dr. John D. Detwiler was an educator born in Roseville, Ontario on July 21, 1878. He was educated at Galt Collegiate Institute, Queens University and the University of Western Ontario. He was a teacher in public and high schools, and became an instructor of entomology and rural education at Cornell University, 1918-1921. At the University of Western Ontario he was assistant professor of zoology 1921-1925, associate professor 1925-1929, professor of applied biology 1929-1946, head of the Department of Applied Biology 1946-1949. He retired in 1949.
Detwiler also acted for a number of years as an investigator for the Biological Board of Canada, the Dept. of Mines and Fisheries, and the Dept. of Game and Fisheries. He served as President of the Canadian Conservation Association 1940-1951.
Detwiler married Hughena Mackenzie Campbell on July 12, 1919. After his retirement he lived in Ayr, Ont. where he died on Aug. 30, 1966.
Custodial history
Scope and content
File consists of 1 piece of correspondence.