Family history. Margaret Harwood’s lectures at Maria Mitchell Observatory in Nantucket; B.A.
Childhood on Missouri farm, early education and interest in science. Enters University of Missouri, 1907; B.A., 1910, M.A.
Childhood on Missouri farm, early education and interest in science.
Early life in Mexico; Civil Engineering school, 1938, physics in Mexico; University of Mexico; study group; visitors from the United States, 1941;
Interview discusses, not in chronological order: early home life and schooling; undergraduate at Leiden, influence of Paul Ehrenfest, Jan H.