Daily: 10 A.M.–5 P.M.
Closed on Tuesdays
1151 Oxford Road
San Marino, CA 91108
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Additional Formats
[A. J. Haagen-Smit; F. T. Haddock; George Ellery Hale; John S. Hall {incl c.ltr JSH to DHSadler; ltr ISB to JSH, LGHenyey, & AEWhitford}; Guillermo Haro {incl c.ltr GH to BHRule; c.ltr LPlaut to GH}; R. G. Harrington; George R. Harrison {incl c.ltr HWB to GRH}; Harshaw Chemical Company; Harvard College Observatory; Takeo Hatanaka; H. LAwrence Helfer {c.ltr HLH to JLGreenstein; c.ltr JLGreenstein to HLH; note OCWilson to ISB}; Louis G. Henyey]
Bowen
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Additional Formats
[James Haffey; G. P. Haight, Jr.; Ray Halloran; Harcourt, Brace & World, Inc. {Joan P. Howell}; Guillermo Haro; John F. Heard {+ photo}; Otto Heckmann; Robert F. Heilbron {American Field Service --incl ltr RFH to BAHill}; H. Lawrence Helfer {c.ltr HLH to WCMiller}; George H. Herbig; Judith Lauren Herr; William A. Hiltner {incl c.ltr Arne Slettebak to WAH}]
Bowen
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Additional Formats
[Y. Hagihara {incl ltr Hiroshi Kubota to ISB}; Leo Hanzione; Guillermo Haro; Daniel E. Harris; Harvard College Observatory; The Haskin Service {M. Goodrich}; Gerald S. Hawkins; C. H. Hayslett; H. Lawrence Helfer {incl c.ltr LAD to HLH}; Donald O. Hendrix {incl c.ltr DOH to Edwin F. Carpenter}; Barklie McKee Henry; C. J. Heyboer {folded}; Hall L. Hibbard]
Bowen
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Additional Formats
[George H. Herbig {incl c.ltr GHH to BHRule; c.ltr BHRule to GHH}; Donald G. Herold; Byron A. Hill {incl c.ltr WABaum to BH}; W. A. Hiltner {incl c.ltr WAH to HWBabcock}; Frederick Hilton; Arthur A. Hoag; J. G. Hopewell; Erich Hösel; T. E. Houck; Robert F. Howard; Guillermo Hoxmark; Glen Hughes; Milton L. Humason; Hunter Films Limited {P. Darvill}; J. Allen Hynek]
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
[Jacques Dautrevaux; Armin J. Deutsch; Herbert Dingle; William N. Dove {DTM}; T. W. Dow; John Driskill; John C. Duncan; Theodore Dunham, Jr. {incl c.ltr HWBabcock to TD; c.3 ltrs TD to HWBabcock; c.ltr TD to RMInkowski; c.ltr TD to KGottlieb}; Eric Durand {Autonetics}; Leo A. Durling; Oscar Lee Dustheimer; Bob Dzama]
Bowen