Titles
- Letter from Joshua Lederberg to Frederick S. Brown1
- Letter from Joshua Lederberg to Harriet Zuckerman, Andrew W. Mellon Foundation1
- Letter from Joshua Lederberg to Helen Astin, Higher Education Research Institute1
- Letter from Joshua Lederberg to John Sninsky1
- Letter from Joshua Lederberg to Jozsef Mohear1
- Letter from Joshua Lederberg to Larry Seaquist1
- Letter from Joshua Lederberg to Marcel C. LaFollette1
- Letter from Joshua Lederberg to Pablo Rubinstein, New York Blood Center1
- Letter from Joshua Lederberg to Paul Wolfowitz1
- Letter from Joshua Lederberg to Pnina Abir-Am1
- Letter from Joshua Lederberg to Richard E. Smalley3
- Letter from Joshua Lederberg to S. K. Bagchi1
- Letter from Joshua Lederberg to Stephen L. McFarland2
- Letter from Joshua Lederberg to William O. Baker1
- Letter from Joshua Lederberg to Zan Cohn1
- Letter from Joshua Lederberg to the John Innes Horticultural Institution1
- Letter from Joshua and Marguerite Lederberg to Zella Luria1
- Letter from June E. Osborn and David E. Rogers to Charles R. McCance1
- Letter from Karl Yordy to Donald A. B. Lindberg1
- Letter from Leonidas H. Berry to John Parascandola1