Manuscripts
I -- miscellaneous
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D -- miscellaneous
Manuscripts
[Daily Mirror (2); Bernard G. Dale (3); Darling Astronomy Club (Duluth, Minnesota) (2); Denny Refrigeration Co. (1); Charles Dollard (1); Lee Alvin DuBridge (1)]
mssHumason papers
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H -- miscellaneous
Manuscripts
[Wayne Harbour (2); Susan Harper (2); Albert J. Harrison (3); David Hart (2); Lud. Hebeier (3); Karl Herndon (1); Cedric E. Hesthal (2); Mrs. Daisy M. Hill (2); Amos H. Hoff (2); Gerald J. Holton (1); Lewis Howard (2); H. R. Howell (2); Walter J. Howell (2); Grace (Mrs. Edwin P.) Hubble (1); Charles Morse Huffer (2)]
mssHumason papers
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I -- miscellaneous
Manuscripts
[Ideal Tool and Plastic Manufacturing Company (2)]
mssHumason papers
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I -- miscellaneous
Manuscripts
[Indemnity Insurance Co. of North America (re Sidney Andrews Jones) (1); John B. Irwin (2); K. H. Isselstein (2)]
mssHumason papers
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K -- miscellaneous
Manuscripts
[R. Kaechele (2); Philip C. Keenan (2); Rev. Armin C. Keibel (2); John D. Kraus (3); Egbert A. Kreiken (3)]
mssHumason papers