Harold Jefferson Coolidge Jr.
American politician / From Wikipedia, the free encyclopedia
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This article is about the zoologist. For the lawyer and father of this one, see Harold Jefferson Coolidge Sr.
Harold Jefferson Coolidge Jr. (January 15, 1904[1] ā February 15, 1985[2]) was an American zoologist and a founding director of the International Union for Conservation of Nature (IUCN) as well as of the World Wildlife Fund (WWF).[3]