Titles
- Letter from J. S. K. Boyd to Joshua Lederberg4
- Letter from Roger Y. Stanier to Joshua Lederberg4
- Letter from Thomas C. Nelson to Joshua Lederberg4
- Letter from Arthur Brown to Joshua Lederberg3
- Letter from Burton A. Waisbren to Joshua Lederberg3
- Letter from Edgar Altenburg to Joshua Lederberg3
- Letter from Francis J. Ryan to Joshua Lederberg3
- Letter from Ralph A. Lewin to Joshua Lederberg3
- Letter from Robert Paul Levine to Joshua Lederberg3
- Letter from Salvador E. Luria to Joshua Lederberg3
- Letter from Shozo Inoki to Joshua Lederberg3
- Letter from Sofia "Topsy" (Simmonds) Fruton to Joshua Lederberg3
- Letter from Tetsu Nakayama to Joshua Lederberg3
- Letter from William D. McElroy to Joshua Lederberg3
- Letter from Albert Waugh to Joshua Lederberg2
- Letter from Avram Goldstein to Joshua Lederberg2
- Letter from C. Barigozzi to Joshua Lederberg2
- Letter from C. Phillip Miller to Joshua Lederberg2
- Letter from Cezar Antonio Elias to Joshua Lederberg2
- Letter from Columbia University to Joshua Lederberg2