- Letter from Arnold and Marion Jones Clark to Joshua Lederberg1
- Letter from Arthur Pollister to Walter and Arline Deitch1
- Letter from Arthur Pollister to Walter and Arline Deitch (Transcription)1
- Letter from Barbara H. Sanford, The Jackson Laboratory to Harold Varmus1
- Letter from Benjy F. Brooks to C. Everett Koop1
- Letter from Betty Mekdeci, Association of Birth Defect Children to C. Everett Koop1
- Letter from C. A. Yeakel, United States Department of Health, Education, and Welfare, Public Health Service, Public Health Service Indian Hospital to C. Everett Koop1
- Letter from C. Everett Koop to Chase N. Peterson, University of Utah University Hospital1
- Letter from C. Everett Koop to Diane L. Schweber1
- Letter from C. Everett Koop to Donald W. Denny, University of Pittsburgh School of Medicine1
- Letter from C. Everett Koop to Gloria Ruby, United States Office of Technology Assessment (OTA)1
- Letter from C. Everett Koop to Judy Corbin1
- Letter from C. Everett Koop to Morris B. Abram1
- Letter from C. Everett Koop to Mr. and Mrs. McGrade1
- Letter from C. Everett Koop to Robert P. Losey, California Pediatric Center1
- Letter from C. Everett Koop to Russell S. Boles, Jr1
- Letter from C. Everett Koop to Ruth H. Bock, Children's Hospital National Medical Center1
- Letter from C. Everett Koop to William French Smith, United States Office of the Attorney General1
- Letter from Charles W. Gish, Indiana State Board of Health, Division of Dental Health to C. Everett Koop1
- Letter from Charlotte Cunningham-Rundles to Joshua Lederberg1