Charles R. Duvall, a former member of the Division of Geodesy, died at his home in this city [Washington, D.C.] on February 4, 1940. Born in Clark County, Va., on January 2, 1869, he received his education at the Universities of West Virginia and Johns Hopkins. He entered the Bureau in 1899. In 1913, he transferred to the Department of Terrestrial Magnetism of the Carnegie Institution of Washington where he remained until his retirement in 1937. He had considerable ability as a mathematical analyst and made many contributions in the fields of geodesy, astronomy, and magnetism. His associates will remember him also for his capacity for generous friendship, for his sound philosophy mixed with whimsical humor, and for his great devotion to truth.

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C&GS Bulletin, 2/29/1940