Student, Texas Presbyterian College, 1922-1924; Bachelor of Arts, University Texas, Austin, 1929; Master of Arts, University Texas, Austin, 1935; Doctor of Philosophy, University Texas, Austin, 1949.
High school teacher, Monterrey, Mexico, 1925-1927;
Public school teacher, Sinton, Texas, 1927-1928;
Public school teacher, Hartley, Texas, 1930-1931;
high school teacher, Ingleside, Texas, 1932-1941;
librarian Latin American collection, University Texas, Austin, 1942-1975;
professor Mexican history, University Texas, 1962-1989;
professor library science, University Texas, 1964-1975. Latin American Cooperative Acquisition Project agent for New York Public Library and Steebert-Hafner, Inc., 1960-1962. President Seminar on Acquition Latin American Library Materials, 1970-1971, International Congress on Mexican Studies, 1972.
Member Task Force on Libraries Information Resources International Education, American Council Education, 1974.
Fellow Texas History Association (H. Bailey Carroll award 1987). Member American History Association (Distinguished Service award 1976, award for scholarly distinction 1990), Conference on Latin American Studies, Latin American Studies Association, Academy Mexicana de la Historia Correspondiente a la Madrid (correspondent), American History Association, Sigma Delta Pi, Phi Alpha Theta, Pi Kappa Alpha.