Who's Who in America: A biographical dictionary of
notable living men and women of the United States, Vol. 13
1924-1925, (Albert Nelson Marquis, ed.); Chicago: A.N. Marquis
LA VARRE, William J(ohanne), Jr., author, explorer; b. Richmond, VA., Aug. 4, 1898; s. William J. and Lelia (Haynes) LaV; spl. student, Harvard; m. Sylvia Doutney, of Burlington, Vt., May 8, 1923. Leader several expedns. into S. America on economic research; discovered and promoted development of diamond fields of British Guiana; an authority on Brazilian rubber and British Guiana diamonds. Episcopalian. Club: Explorers' (New York). Author: Up the Mazaruni for Diamonds, 1918. Contbr. to mags. on travel and adventure. Lecturer. Home: Riverside, Connecticut.