Internet consulté le 2005-05-15, http://training.fws.gov/history/gabrielson.html
Information trouvée : Born 1889 Sioux Rapids, IA. B.A. (Biology) Morningside College 1912. Taught high school
biology Marshalltown, IA 1912-1915. Joined Biological Survey as field biologist 1916.
Director of the Biological Survey 1935-1939. Director of Fish and Wildlife Service
1940-1946 President of Wildlife Management Institute 1946-1970. Died in Arlington,
VA 1977.