Titles
- Letter from Joshua Lederberg to Edward L. Tatum1
- Letter from Joshua Lederberg to Edwin S. Lennox1
- Letter from Joshua Lederberg to Ernst H. Beutner1
- Letter from Joshua Lederberg to Ethel McNeil1
- Letter from Joshua Lederberg to George O. Carrington1
- Letter from Joshua Lederberg to Germaine Cohen-Bazire1
- Letter from Joshua Lederberg to Gerry Lindegren1
- Letter from Joshua Lederberg to Gertud E. Mislap1
- Letter from Joshua Lederberg to Helen Kann1
- Letter from Joshua Lederberg to I. D. Michelson1
- Letter from Joshua Lederberg to Ilda McVeigh1
- Letter from Joshua Lederberg to J. Oliver Lampen1
- Letter from Joshua Lederberg to J. S. K. Boyd1
- Letter from Joshua Lederberg to James Bonner1
- Letter from Joshua Lederberg to M. Demerec1
- Letter from Joshua Lederberg to Margaret Lieb1
- Letter from Joshua Lederberg to Marjorie Bohnhoff1
- Letter from Joshua Lederberg to Mary B. Mitchell1
- Letter from Joshua Lederberg to Melvin Cohn1
- Letter from Joshua Lederberg to Michael Doudoroff1