Titles
- Letter from Tetsuo Iino to Joshua Lederberg8
- Letter from A. T. Ganesan to Joshua and Esther Lederberg7
- Letter from Aaron Novick to Joshua Lederberg7
- Letter from Henry Brosin to Joshua Lederberg7
- Letter from Ntinos C. Myrianthopoulos to Joshua Lederberg7
- Letter from Wolfram Heumann to Joshua Lederberg7
- Letter from Bernard D. Davis to Joshua Lederberg6
- Letter from Elof A. Carlson to Joshua Lederberg6
- Letter from Francis Crick to H. Gobind Khorana6
- Letter from George W. Beadle to Joshua Lederberg6
- Letter from Gordon Allen to Joshua Lederberg6
- Letter from M. L. Morse to Joshua Lederberg6
- Letter from R. Sargent Shriver, Jr. to Joshua Lederberg6
- [Alfred Blalock]6
- [Jerzy Konorski]6
- Letter from Alvin F. Coburn to Joshua Lederberg5
- Letter from Detlev Wulf Bronk to Joshua Lederberg5
- Letter from Edward L. Tatum to Joshua Lederberg5
- Letter from Francis Crick to Joshua Lederberg5
- Letter from Francis J. Ryan to Joshua Lederberg5