Titles
- Letter from Homer E. Newell to Joshua Lederberg2
- Letter from John Lear to Joshua Lederberg2
- Letter from John O'Brien to Joshua Lederberg2
- Letter from John W. Gofman to Joshua Lederberg2
- Letter from Joshua Lederberg to Albert J. Lipson2
- Letter from Joshua Lederberg to Alexander Bodi, Palo Alto Times2
- Letter from Joshua Lederberg to Alfred A. Knopf, Inc.2
- Letter from Joshua Lederberg to Arno G. Motulsky2
- Letter from Joshua Lederberg to Arthur R. Jensen2
- Letter from Joshua Lederberg to David Perlman2
- Letter from Joshua Lederberg to Edward I. Koch2
- Letter from Joshua Lederberg to Eli A. Rubinstein2
- Letter from Joshua Lederberg to Gaylord Nelson2
- Letter from Joshua Lederberg to George A. Silver2
- Letter from Joshua Lederberg to George A. Silver, Urban Coalition2
- Letter from Joshua Lederberg to Harry Schwartz2
- Letter from Joshua Lederberg to Helen (Spurway) Haldane2
- Letter from Joshua Lederberg to Howard Simons, Washington Post2
- Letter from Joshua Lederberg to Indiana University Press2
- Letter from Joshua Lederberg to John W. Gardner2