- Date
- 1920-22, 1924-25
- Call number
- mssSeares papers
- Provenance
- Placed on deposit by Observatories of the Carnegie Institution of Washington, 1988.
- Associated people
- Adams, Walter S. (1876-1956.)
- Aitken, Robert Grant, (1864-1951.)
- Barnard, Edward Emerson, (1857-1923.)
- Campbell, William Wallace, (1862-1938.)
- Fock, Gustav, (1893-1974.)
- Frost, Edwin Brant, (1866-1935.)
- Gale, Henry Gordon, (1874-1942.)
- Payne-Gaposchkin, Cecilia, (1900-1979.)
- Gilbert, Walter M. (1868-1938.)
- Hale, George Ellery, (1873-1967.)
- Hertzsprung, Ejnar, (1889-1953.)
- Hubble, Edwin, (1851-1922.)
- Kapteyn, J. C. (1868-1953.)
- Leuschner, Armin Otto, (1882-1960.)
- Mees, C. E. Kenneth (1869-1945.)
- Merriam, John C. (1898-1990.)
- Moore, Charlotte Emma, (1861-1925.)
- Parkhurst, John Adelbert, (1881-)
- Pease, F. G. (1846-1919.)
- Pickering, Edward C. (1886-)
- Rhijn, P. J. van (1874-1960.)
- Ross, Frank E. (1877-1957.)
- Russell, Henry Norris, (1885-1972.)
- Shapley, Harlow, (1878-1966.)
- Stebbins, Joel, (1897-1963.)
- Struve, Otto, (1879-1964.)
- Wilson, Edwin Bidwell,
- Associated organizations
- American Association for the Advancement of Science.
- Astronomical Society of the Pacific.
- Carnegie Institution of Washington.
- William H. Guild & Company.
- International Astronomical Union.
- International Union for Co-operation in Solar Research.
- University of Chicago.