1. Letter from Fred L. Soper to Wilbur A. Sawyer Publication: Produced: 7 July 1939 Subject(s): Mosquito ControlMalariaBudgetsFinancial Support Archival Collection: The Fred L. Soper Papers (Profiles in Science)
2. Letter from Fred L. Soper to Lewis Hackett Publication: Produced: 18 October 1955 Subject(s): Financial SupportMosquito ControlYellow Fever Vaccine Archival Collection: The Fred L. Soper Papers (Profiles in Science)
3. Letter from Leona Baumgartner to Fred L. Soper Publication: Produced: 17 May 1966 Subject(s): LeprosyFinancial Support Archival Collection: The Fred L. Soper Papers (Profiles in Science)
4. Letter from Fred L. Soper to Leona Baumgartner Publication: Produced: 20 May 1966 Subject(s): LeprosyFinancial SupportLibraries, MedicalFinancing, Government Archival Collection: The Fred L. Soper Papers (Profiles in Science)
5. Letter from Fred L. Soper to Wilbur A. Sawyer Publication: Produced: 23 November 1938 Subject(s): Mosquito ControlCulicidaeBudgetsMalariaFinancial Support Archival Collection: The Fred L. Soper Papers (Profiles in Science)
6. Letter from Paul Kotin to Mary Lasker Publication: Produced: 8 April 1966 Subject(s): CarcinogensFinancial Support Archival Collection: The Mary Lasker Papers (Profiles in Science)
7. Letter from C. Everett Koop to David E. Rogers, Robert Wood Johnson Foundation Publication: Produced: 22 April 1981 Subject(s): Financial SupportDisabled Children Archival Collection: The C. Everett Koop Papers (Profiles in Science)
