Titles
- Letter from George Klein to Joshua Lederberg4
- Letter from John Von Neumann to Joshua Lederberg4
- Letter from Joshua Lederberg to Abraham White4
- Letter from Joshua Lederberg to Edward L. Tatum4
- Letter from Joshua Lederberg to Luca Cavalli-Sforza4
- Letter from Joshua Lederberg to Thomas C. Nelson4
- Letter from Norton D. Zinder to Joshua Lederberg4
- Letter from Palmer David Skaar to Joshua Lederberg4
- Letter from Ralph A. Lewin to Joshua Lederberg4
- Letter from Robley Williams to Rosalind Franklin4
- Letter from Rosalind Franklin to Robley Williams4
- Letter from Alexander Rich to Rosalind Franklin3
- Letter from C. C. Lindegren to Joshua Lederberg3
- Letter from Einar Leifson to Joshua Lederberg3
- Letter from Ellsworth C. Dougherty to Joshua Lederberg3
- Letter from James D. Watson to Francis Crick3
- Letter from Jean Husted, W. B. Saunders Company to Joshua Lederberg3
- Letter from Joshua Lederberg to Aaron Novick3
- Letter from Joshua Lederberg to Bernard D. Davis3
- Letter from Joshua Lederberg to C. A. Elvehjem3