Titles
- Letter from Joshua Lederberg to Homer E. Newell5
- Letter from Joshua Lederberg to Igor N. Asheshov5
- Letter from Joshua Lederberg to James L. Goddard5
- Letter from Joshua Lederberg to James M. Sherman5
- Letter from Joshua Lederberg to Jerome B. Wiesner5
- Letter from Joshua Lederberg to John E. Merriam5
- Letter from Joshua Lederberg to John E. Pfeiffer5
- Letter from Joshua Lederberg to John Von Neumann5
- Letter from Joshua Lederberg to John Yudkin5
- Letter from Joshua Lederberg to L. L. Waters5
- Letter from Joshua Lederberg to Malcolm Wiener5
- Letter from Joshua Lederberg to Margaret Lieb5
- Letter from Joshua Lederberg to Matthew Meselson5
- Letter from Joshua Lederberg to Melvin Calvin5
- Letter from Joshua Lederberg to Michael Heidelberger5
- Letter from Joshua Lederberg to Neal B. Groman5
- Letter from Joshua Lederberg to Noel Gayler5
- Letter from Joshua Lederberg to Olavi Makela5
- Letter from Joshua Lederberg to Peter R. Day5
- Letter from Joshua Lederberg to Philip E. Hartman5