Titles
- Letter from Joshua Lederberg to Arnold Ludwig3
- Letter from Joshua Lederberg to Arnold O. Beckman3
- Letter from Joshua Lederberg to Art Galston3
- Letter from Joshua Lederberg to Arthur C. Upton3
- Letter from Joshua Lederberg to Arthur R. Day, Arms Control and Disarmament Agency3
- Letter from Joshua Lederberg to Barbara E. Wright3
- Letter from Joshua Lederberg to Barton J. Bernstein3
- Letter from Joshua Lederberg to Berwind P. Kaufmann3
- Letter from Joshua Lederberg to Bruce W. Holloway3
- Letter from Joshua Lederberg to C. H. Browning3
- Letter from Joshua Lederberg to C. Wayne Bardin3
- Letter from Joshua Lederberg to Carolyn Kopp, Rockefeller University Archives3
- Letter from Joshua Lederberg to Charles A. Evans3
- Letter from Joshua Lederberg to Charles Yanofsky3
- Letter from Joshua Lederberg to Charlotte A. Colwell3
- Letter from Joshua Lederberg to Claes Weibull3
- Letter from Joshua Lederberg to Clifford Grobstein, National Cancer Institute3
- Letter from Joshua Lederberg to Cyril N. Hinshelwood3
- Letter from Joshua Lederberg to Daniel Mazia3
- Letter from Joshua Lederberg to David Perlman3