1. Letter from Lewis Hackett to Fred L. Soper Publication: Produced: 12 October 1955 Subject(s): Financial SupportMosquito ControlYellow Fever Vaccine 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. Memorandum on Trip to Africa and Geneva, October 31st to December 10, 1959 Publication: Produced: [ca. 10 December 1959] Subject(s): Mosquito ControlAnophelesMalariaFinancial Support Archival Collection: The Fred L. Soper Papers (Profiles in Science)
4. Excerpt from Fred Soper's diary Publication: Produced: [24 November-31 December 1960] Subject(s): Financial SupportOrganization and AdministrationCholeraCholera VaccinesEpidemiologyMalariaMosquito Control Archival Collection: The Fred L. Soper Papers (Profiles in Science)