Background
Campbell, Leon was born on January 20, 1881 in Cambridge, Massachusetts, United States. Son of William J. and Leonora (Rawding) Campbell.
Campbell, Leon was born on January 20, 1881 in Cambridge, Massachusetts, United States. Son of William J. and Leonora (Rawding) Campbell.
Student in public schools, Cambridge, and special instruction Harvard Observatory.
Assistant at Harvard Observatory, 1899-1911, in charge of Arequipa (Peru) station, 1911-1915, variable star investigator, and astronomer, since 1915. Instructor in astronomy Harvard, 1928, Pickering Memorial astronomer, since 1931. Assists in extension of research among amateur astronomers.
Member American Astronomical Society, American Association Variable Star Observers (president 1919-1922), International Astion. Union, Lima Geography Society (honorary).
Married Fredrica J. Thompson, June 15, 1905. Children: Leon, Florence May, Malcolm Fredric, Ruth Evelyn, Eleanor Beatrice.