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Franklin Henry Hooper (born Jan. 28, 1862, Worcester, Mass., U.S.—died Aug. 14, 1940, near Saranac Lake, N.Y.) was the U.S. editor in chief of Encyclopædia Britannica from 1932 to 1938, and the brother of the Britannica’s publisher Horace Everett Hooper. In 1899 Hooper joined the staff of the Britannica, in which his brother Horace, James Clarke, and others had acquired an interest. Franklin Hooper was connected with five editions of the Britannica in the ensuing...