Titles
- Letter from Joshua Lederberg to J. C. Woodruff4
- Letter from Joshua Lederberg to J. S. K. Boyd4
- Letter from Joshua Lederberg to J. William Fulbright4
- Letter from Joshua Lederberg to Jack L. Strominger4
- Letter from Joshua Lederberg to Jacob K. Javits4
- Letter from Joshua Lederberg to James V. Neel4
- Letter from Joshua Lederberg to Jean Creze4
- Letter from Joshua Lederberg to John S. Lambert4
- Letter from Joshua Lederberg to John Totter, United States Atomic Energy Commission4
- Letter from Joshua Lederberg to John V. Tunney4
- Letter from Joshua Lederberg to Joseph C. Hinsey4
- Letter from Joshua Lederberg to Joseph S. Gots4
- Letter from Joshua Lederberg to K. V. Kossikov4
- Letter from Joshua Lederberg to Karl Paul Link4
- Letter from Joshua Lederberg to Kendall W. King4
- Letter from Joshua Lederberg to Kenneth A. Bisset4
- Letter from Joshua Lederberg to Kenneth J. Arrow4
- Letter from Joshua Lederberg to Kimball and Barbara Atwood4
- Letter from Joshua Lederberg to Laurance S. Rockefeller4
- Letter from Joshua Lederberg to Leland W. Parr4