Daily: 10 A.M.–5 P.M.
Closed on Tuesdays
1151 Oxford Road
San Marino, CA 91108
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Additional Formats
[Y. Hagihara; John S. Hall; Warren J. Hall { MLHumason [?]}; Roswell G. Ham; Paul Hance, Jr. {incl copy ltr MLHumason to PH}; E. L. Hancock; Arthur C. Hardy; Leita A. Harmon; Guillermo Haro; Harvard Observatory {ephemera}; John F. Heard; O. Heckmann; Rollin D. Hemens; Herbert Henstock; Bruno Herscovici]
Bowen
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Additional Formats
[John S. Hall; James W. Harman, Jr.; Robert C. Hartman; Harvard Alumni Bulletin {Cynthia Gabrielli}; Margaret Harwood; Caryl P. Haskins {some re Robert J. Zinn}; Robert F. Heilbron; Karl G. Henize; William A. Hiltner; August Hoffmann; C. Hoffmeister; John R. Howe, Jr.; Milton L. Humason]
Bowen
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Additional Formats
[J. Vern Hales; Andrew Hamilton; Robert H. Hardie; Guillermo Haro; William A. Hatt; Sherwood K. Haynes; H. Martin Hays; John F. Heard; Barklie McKee Henry; George H. Herbig; Mrs. Dorothy Hicks; William A. Hiltner; August Hoffmann; Hermine Holler; Michael A. Hoskins {c.ltr HWB to MAH}; Richard G. Huzarski]
Bowen
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Additional Formats
[Heinz Haber {Nord-und Westdeutscher Rundfunkverband}; John S. Hall; Robert Hardie {re CKSeyfert}; R. W. Harrison, Jr.; Jacob F. Hartman; Harvard College Observatory; Margaret Harwood; John F. Heard {incl c.ltr JFH to Don E. Davidson}; O. Heckmann]
Bowen
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Additional Formats
[Gilbert P. Haight, Jr.; Evelina C. Hale; John S. Hall; Marshall Hall, Jr.; Lansing V. Hammond; Robert Hardie; Guillermo Haro; Richard A. Harvill; Clinton Hawes; John F. Heard {incl c.ltr HWB to JFH}; Osborne O. Heard; O. Heckmann; Donald O. Hendrix; Karl G. Henize {incl c.ltr HWB to KGH}; Merlyn C. Herrick {incl ltr MCH to WCMiller}]
Bowen
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Additional Formats
[John S. Hall {c.ltr JSH to John Irwin}; Robert Hardie {c.ltr WABaum to RH}; Emerson Hartong {ltr of passage ISB}; Sherwood K. Haynes; John F. Heard {folded}; George H. Herbig; Byron Hill {incl ltr MtWilson & Palomar staff to ISB}; W. A. Hiltner {c.ltrs BHRule to WAH}; W. G. Hingston; Arthur R. Hogg; Holiday {Carl L. Biemiller}; Erik Holmberg; Ralston Holmes; J. Hopmann; Fred Hoyle; Edwin P. Hubble; C. M. Huffer; Milton L. Humason]
Bowen