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Paleontologists -- United States -- Correspondence

 Subject
Subject Source: Library Of Congress Subject Headings

Found in 2 Collections and/or Records:

Otto Haas papers, 1909-1976

 Collection
Identifier: Mss .H33

William Diller Matthew papers, 1922-1926

 Collection
Identifier: Mss .M338
Dates: Majority of material found within ( 1925-1926)