Subject: Financial Support and Yellow Fever Vaccine / Exhibit Tags: campaign - Fred L. Soper - Profiles in Science Search Results

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1. Letter from Lewis Hackett to Fred L. Soper

Creator:: Hackett, Lewis
Date:: 12 October 1955
Genre:: Letters (correspondence)

2. Letter from Fred L. Soper to Lewis Hackett

Creator:: Soper, Fred Lowe, 1893-1977
Date:: 18 October 1955
Genre:: Letters (correspondence)