Daily: 10 A.M.–5 P.M.
Closed on Tuesdays
1151 Oxford Road
San Marino, CA 91108
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Manuscripts
[Evelina (Mrs. George Ellery) Hale (1); Harvard College Observatory Library (1); The Haskin Service (2); D. C. Heath and Co. (5); Cedric E. Hesthal (1); Elmer H. Hunt (4); Dick Hyland (2)]
mssHumason papers
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Manuscripts
[California Academy of Sciences (2); Fred W. Cassirer (1); S. E. Chaney, Jr. (3); Chauvin Arnoux (2); Albert Clark (2); Amos E. Clark (2); The Arthur H. Clark Co. (3); William Weber Coblentz (2); Collier's Readers Research Bureau (2); Sir Alwyn Crow (1); Leslie Cryer (2); John Hamilton Curtiss (1)]
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
[F. W. Warburton (2); H. Wearing (2); Nettie A. Werdig (2); Olin Chaddock Wilson, Jr. (1); John C. Winston Company (3)]
mssHumason papers
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Manuscripts
[McGraw-Hill Publishing Co., Inc. (3); Maryland Academy of Sciences(3); Gilbert Mason (2); John B. Mast (2); Carol Merriman (2); G. R. Miczaika (1); Harcourt S. Middleton (3); Roswell Miller (1)]
mssHumason papers
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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