Daily: 10 A.M.–5 P.M.
Closed on Tuesdays
1151 Oxford Road
San Marino, CA 91108
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Additional Formats
[Byron Hill {incl c.ltr Photo Lab (Mt. Wilson) to BH}; W. A. Hiltner; Erik Holmberg; Robert E. Holzer; Edwin P. Hubble; C. M. Huffer; M. L. Humason; J. Allen Hynek {incl ltr PWMerrill to JAH}]
Bowen
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Additional Formats
[Paul Hodge; Wilson Hole {c.ltr WCMiller to WH}; C. Carroll Hollis {Library of Congress}; Erik Holmberg {incl ltr ISB to MLHumason; ltr MLHumason to ISB}; Dilys Holter; Nathan Horowitz; Léo Houziaux; William E. Howard; Grace Hubble; Howard A. Hyatt]
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
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Additional Formats
[C. Hoffmeister {folded}; David E. Hogg; Wilson Hole {c.ltr WCMiller to WH}; Erik Holmberg; Holt, Rinehart and Winston, Inc {Nathan F. Twinning; Richard C. Young}; Robert F. Howard {incl c.ltr HWB to RFH}; J. Allen Hynek]
Bowen
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Additional Formats
[Byron Hill; W. A. Hiltner; A. R. Hogg; B. G. Hooghoudt; Clyde Hostetter; T. E. Houck; Robert F. Howard {incl c.ltr LAD to RFH}; Karel Hujer; A. B. Humphreys]
Bowen
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Additional Formats
[Byron Hill; Eugene Hlady {folded}; D. K. R. Hodgkin {re William Buscombe}; S. von Hoerner {incl ltr Elizabeth P. Lam to ISB; ltr ISB to EPLam}; Helen Sawyer Hogg {incl c.proposal from D. H. McNamara to NSF}; William V. Houston; C. J. van Houten; Fred Hoyle {c.ltr Robert F. Bacher to FH}; Fernando P. Huberman; Alice Hahn; H. C. van de Hulst; Milton L. Humason {folded}; J. C. Hunsaker; Rev. Earle L. Hutsell; Milton Hyman; J. Allen Hynek]
Bowen