Daily: 10 A.M.–5 P.M.
Closed on Tuesdays
1151 Oxford Road
San Marino, CA 91108
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Manuscripts
[C. O'Connor (2); Gerald F. O'Donnell (1); Mrs. William A. Olson (2); Guy C. Omer, Jr. (2); José Mar¡a Otero Navascués (2)]
mssHumason papers
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Additional Formats
[Douglas G. O'Brien {Corning Glass Center}; G. J. Odgers; Stephen O'Donnell {& Irving D. Hirschfield}; Ruth Oedin; Richard Ogden; Yngve öhman {c.ltr HWBabcock to Yö}; J. B. Oke; Frank O'Malley; Jan H. Oort {incl c.ltr JWB to JHO; c.ltr JHO to Henry T. Heald; c.ltr WCMiller to JHO}; P. Th. Oosterhoff; Optical Society of America {Wallace R. Brode}; Dwayne Orton {Think magazine}; Mabel Romero de Osnovikoff; Donald E. Osterbrock]
Bowen
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Manuscripts
[J. A. Babalola (2); Philip A. Baker (1); Stuart F. Baptista (5); Gene Baraff (5); Arthur Barkin (3); Earl J. Behling (4); T. B. Bi (incl. 1 photo of Nanking Observatory) (3); Mark H. Bigler (2); W. A. Brady (2); Hermann E. Brasch (2); K. G. Brehm (2); B. Beth Bristol (2); D. Brooke (2); B. Allen Bryant (2)]
mssHumason papers
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Manuscripts
[Wayne Harbour (2); Susan Harper (2); Albert J. Harrison (3); David Hart (2); Lud. Hebeier (3); Karl Herndon (1); Cedric E. Hesthal (2); Mrs. Daisy M. Hill (2); Amos H. Hoff (2); Gerald J. Holton (1); Lewis Howard (2); H. R. Howell (2); Walter J. Howell (2); Grace (Mrs. Edwin P.) Hubble (1); Charles Morse Huffer (2)]
mssHumason papers
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Manuscripts
[P. V. H. Weems (Institute of Navigation) (2); G. E. Wetherhold (2); Walter T. Whitney (3)]
mssHumason papers
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Manuscripts
[J. H. Landrum (2); B. Lalitch (2); F. Lauraitis (2); Oliver Justin Lee (3); Robert B. Leighton (2); Gerald I. P. Levinson (5); Los Angeles City Board of Education (3); Gregory Lounz (2)]
mssHumason papers