Titles
- Letter from Barton Childs to Joshua Lederberg2
- Letter from Clarence Dennis to Karl E. Karlson2
- Letter from Don Flickinger to Joshua Lederberg2
- Letter from Dorothy H. Strong to Joshua Lederberg2
- Letter from Edward Anders to Joshua Lederberg2
- Letter from Francis Crick to Fritz Lipmann2
- Letter from Harrison Brown to Joshua Lederberg2
- Letter from Herman N. Eisen to Joshua Lederberg2
- Letter from Jack L. Strominger to Joshua Lederberg2
- Letter from James B. Hartgering, President's Scientific Advisory Committee to Joshua Lederberg2
- Letter from John F. Kennedy to Joshua Lederberg2
- Letter from Joshua Lederberg to Alfons Metzner2
- Letter from Joshua Lederberg to Elliott C. Levinthal2
- Letter from Joshua Lederberg to Francis J. Ryan2
- Letter from Joshua Lederberg to G. A. Derbyshire2
- Letter from Joshua Lederberg to Giovanni Magni2
- Letter from Joshua Lederberg to Homer E. Newell2
- Letter from Joshua Lederberg to Jerome B. Wiesner, President's Scientific Advisory Committee2
- Letter from Joshua Lederberg to Lawrence Dunkelman2
- Letter from Joshua Lederberg to Milan Hasek2