- Letter from Herb Kohl, United States Senate to Joshua Lederberg1
- Letter from Herb Kohl, United States Senate to Joshua Lederberg1
- Letter from Howard C. Berg to Joshua Lederberg1
- Letter from Hugo A. Barrera-Saldana to Rebecca W. Rimel, Pew Charitable Trusts1
- Letter from Irvine H. Page to Joshua Lederberg1
- Letter from James D. Watkins to Mary Lasker1
- Letter from James D. Watson to Kenichi Matsubara1
- Letter from James F. Crow to Joshua Lederberg1
- Letter from Jan Sapp to Joshua Lederberg1
- Letter from Joseph V. Osterman, Department of Defense, Office of the Director of Defense Research and Engineering to Joshua Lederberg1
- Letter from Joshua Lederberg and Lynn Rusten to Vadim Ivanov, Shemyakin Institute of Bioorganic Chemistry and Yuri Shiyan, Academy of Sciences, U.S.S.R.1
- Letter from Joshua Lederberg to Alan J. Wolfe and Howard C. Berg1
- Letter from Joshua Lederberg to Alexis Shelokov1
- Letter from Joshua Lederberg to Ann Landers1
- Letter from Joshua Lederberg to Brian M. Jenkins1
- Letter from Joshua Lederberg to Christoph Scholtissek1
- Letter from Joshua Lederberg to Daniel L. Hartl1
- Letter from Joshua Lederberg to Edwin C. Whitehead1
- Letter from Joshua Lederberg to Elizabeth J. Sherman, National Academy of Sciences1
- Letter from Joshua Lederberg to Eugene Kennedy, Harvard Medical School, Department of Biological Chemistry1