March 1972); 1 daughter, Marilyn Jean. Married second, Anne Vallery Lorbach, September 20, 1972. Instructor astronomy U. Cincinnati, 1931-1940, assistant professor, 1940-1943, professor, 1943-1978, Distinguished Service professor, 1965-1978.
Morrison fellow Lick Observatory, University of California, 1935-1936. Scientist Navy Department, United States Naval Observatory, 1942-1946. Director Cincinnati Observatory, 1943-1978, Minor Planet Center of International Astronomical Union, 1947-1978.
Consultant Manhattan Project, Oak Ridge, Atomic Energy Commission, Argonne National Laboratory, Chicago, United States Air Force Project Atlas, NRL Project Vanguard, Project Mercury. Staff Watson Science Computing Laboratory, 1951-1952.
Member National Academy Sciences (recipient James Craig Watson gold medal 1965), American Astronomical Society (council 1952-1955), American Association for the Advancement of Science, Engineering Society Cincinnati (honorary), American Association University Professors, International Astronomical Union (president commission 20 1961-1967), Phi Beta Kappa, Sigma Xi.