Heyden, Francis J.
Francis J. Heyden letter about the quest for Jesuit astronomers, 1982.
Letter from Francis J. Heyden, S. J. listing Jesuit astronomers including those at Georgetown, 1930-1948.
Heyden, Francis J.
Georgetown University -- Faculty.
Manila Observatory
Astronomers.
Institutional History
Jesuits.
AIP-ICOS
American Institute of Physics. Niels Bohr Library & Archives. One Physics Ellipse, College Park, MD 20740, USA