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 Dudley A. Reekie to Fred L. Soper Publication: Produced: 30 August 1943 Subject(s): Financial SupportCooperative BehaviorTyphus, Epidemic Louse-Borne Archival Collection: The Fred L. Soper Papers (Profiles in Science)
3. 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)
4. Letter from Karl Paul Link to the University of Wisconsin Publication: Produced: 30 March 1948 Subject(s): Financial Support Archival Collection: The Joshua Lederberg Papers (Profiles in Science)