American Astronomical Society (1916-1975)
Cincinnati Observatory (Cincinnati, Ohio)
Columbia University
Dartmouth College (Hanover, New Hampshire)
Delaplaine, Roy W. (astronomer)
Gaustad, John E. (Director, Sproul Observatory)
National Museum of American History (U.S.). Division of Physical Sciences
Northwestern University. Dearborn Observatory (Evanston, Illinois)
Swarthmore College. Sproul Observatory (Swarthmore, Pennsylvania: 1916)
Yerkes Observatory (Williams Bay, Wisconsin)