Titles
- Letter from Joshua Lederberg to Marguerite Vogt3
- Letter from Joshua Lederberg to Robert Tulasne3
- Letter from Joshua Lederberg to Salvador E. Luria3
- Letter from Kimball Atwood to Joshua Lederberg3
- Letter from Margaret Lieb to Joshua Lederberg3
- Letter from Norton D. Zinder to Joshua Lederberg3
- Letter from Pierre Fredericq to Joshua Lederberg3
- Letter from Salvador E. Luria to Joshua Lederberg3
- Letter from Sol Spiegelman to Tracy M. Sonneborn3
- Letter from A. L. Kappus to Joshua Lederberg2
- Letter from Albert Kelner to Joshua Lederberg2
- Letter from Biological Abstracts to Joshua Lederberg2
- Letter from Edward D. Garber to Joshua Lederberg2
- Letter from Edward L. Tatum to Joshua Lederberg2
- Letter from Erich Seligmann to Joshua Lederberg2
- Letter from Irving M. Klotz to Joshua Lederberg2
- Letter from Italo Peragallo to Joshua Lederberg2
- Letter from Joshua Lederberg to C. B. Van Niel2
- Letter from Joshua Lederberg to Curt Stern2
- Letter from Joshua Lederberg to H. J. Muller2