Manuscripts
H -- Miscellaneous
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H -- Miscellaneous
Manuscripts
Carl Halvarson (2); Julie M. Vinter Hansen [includes correspondence with Astronomical Society of the Pacific] (7); Arthur Cobb Hardy (1); Ezra Clarence Harrah (7); Robert Torrens Hatt (2); Ruth E. Hayner (4); Rosemary Heckelman (2); Samuel G. Hefelbower (7); Neal J. Heines (10); Bernard Clifford Hendricks (1); Carl Hinshaw [includes form letter from "American Defense"] (3); Bert Hollenbee (1); Holmes Projector Co. (1); H. J. Holmquest (2); Houghton-Mifflin Co. (1); John M. Howie (3); Edward Olson Hulburt (3); H. R. Hulme (3); Ellsworth Huntington (2); Charles W. Hurd (6)
mssPettit papers
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H -- Miscellaneous
Manuscripts
Oscar A. Hagen (1); E. W. Hawkes (14); Bernard Clifford Hendricks (1); John Severy Hibben (1); Alexander Hollander (1); John M. Howie (1); Philip F. Hoyt [re illness & death of Wilbur F. Hoyt] (3); Wilbur Franklin Hoyt [one letter with note from R. D. Overholt] (6)
mssPettit papers
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H -- Miscellaneous
Manuscripts
F. H. Hagner [Position Finder Corp.] (7); Charles E. Hall (2); Hanovia Chemical & Manufacturing Co. (1); Hartford, Connecticut, Board of Education (1); Samuel G. Hefelbower [much re Carthage College] (18); Bernard Clifford Hendricks (5); [?] Henson (1); Samuel G. Hibben [Westinghouse Lamp Co.] (2); Edgar Higgins (2); W. J. Hitchcock (4); Holmes Projector Co. (2); John M. Howie (4); The Huntington Library (1)
mssPettit papers
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K -- Miscellaneous
Manuscripts
M. E. Kahler (1); Kay & Burbank Co., Inc. (1); Keese Engineering Co. (1); Norton Adams Kent (2); Herbert Harvey Kimball [American Geophysical Union] (10); P. J. Kipp & Zonen [includes J. J. van Oortmerssen] (5); Alfred Brooker Klugh (6); H. Kobold (1); Harry I. Krakeur [sp.?] (1); Jakob Kunz (3)
mssPettit papers
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H -- Miscellaneous
Manuscripts
Asaph Hall, Jr. (1); L. R. Hafstad (1); Herbert A. Hamm (1); Hanovia Chemical & Manufacturing Co. (23); R. I. Harris (1); Gilbert Havens (2); Earnest W. Hawkes (2); Fred H. Heath (1); Bernard Clifford Hendricks (1); Adam Hilger, Ltd. (1); Leonard Hill (2); Thorfin Rusten Hogness (3); Mrs. C. I. W. Hollister (2); William James Hooper (4); Frank E. Howard (4); William Franklin Hoyt (18); Blythe Hurst, Sr. (6)
mssPettit papers
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R -- Miscellaneous
Manuscripts
Radi-Ion Corp. (1); Lord Rayleigh (3); Arthur R. Riddle (2); William F. Rigge, S.J. (4); The Rockefeller Institute for Medical Research (1); R. S. Rockwood (5); Frank Elmore Ross (10); Royal College of Science, Canada (1); Henry Norris Russell (2); Walter Charles Russell (2)
mssPettit papers