Titles
- Letter from Alan Gregg to his wife12
- Letter from Avram Goldstein to Joshua Lederberg12
- Letter from C. Phillip Miller to Joshua Lederberg12
- Letter from Charles R. Phillips to Joshua Lederberg12
- Letter from Curt Stern to Joshua Lederberg12
- Letter from F. M. Burnet to Joshua Lederberg12
- Letter from Francis Crick to Joshua Lederberg12
- Letter from Francis Crick to Marshall W. Nirenberg12
- Letter from Frank Stodola to Joshua Lederberg12
- Letter from Joshua Lederberg to Edward A. Adelberg12
- Letter from Joshua Lederberg to Emma Klieneberger-Nobel12
- Letter from Joshua Lederberg to Fritz Kauffmann12
- Letter from Joshua Lederberg to Hideo Kikkawa12
- Letter from Joshua Lederberg to Hugh Odishaw12
- Letter from Joshua Lederberg to James D. Watson12
- Letter from Joshua Lederberg to John Burton Sanderson Haldane12
- Letter from Joshua Lederberg to Lloyd V. Berkner12
- Letter from Joshua Lederberg to M. L. Morse12
- Letter from Joshua Lederberg to Martin R. Pollock12
- Letter from Joshua Lederberg to Palmer David Skaar12