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
George Ellery Hale (1); Asaph Hall, Jr. (5); William Edmund Harper (1); Harper's Magazine [includes correspondence with Ellsworth Huntington] (7); George Russell Harrison (2); Margaret Harwood (5); Russell M. Heath (1); S. G. Hefelbower (1); Henry Heil Chemical Co. (6); Adam Hilger, Ltd. (1); Herbert Percival Hollnagel (3); Herbert Clark Hoover (1); John M. Howie [includes copy letter EP 6 Victor Clifton Alderson] (3); Wilbur Franklin Hoyt [includes photo] (4)
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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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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C -- Miscellaneous
Manuscripts
Arthur Hawthorne Carhart (2); Carnegie Institution of Washington, Division of Publications (5); Carthage College (7); Subrahmanyan Chandrasekhar (1); [?] Clark (1); William Weber Coblentz (2); Joseph P. Cranston (1); Crater Lake National Park (1); Eugene Casson Crittenden (3); Clifford Crump (4); Heber Doust Curtis (1); The Cushman Chuck Co. (2)
mssPettit papers
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E -- Miscellaneous
Manuscripts
Eimer and Amend Chemical Co. (1); Elgin National Watch Co. (2)
mssPettit papers