1. Letter from C. Everett Koop to Newsweek Creator: Koop, Charles Everett, 1916-2013 Date: 2 June 1981 Genre: Letters (correspondence)
2. Letter from C. Everett Koop to Linward A. Crowe, Tenth Presbyterian Church Creator: Koop, Charles Everett, 1916-2013 Date: 15 November 1981 Genre: Letters (correspondence)
3. Letter from C. Everett Koop to Chase N. Peterson, University of Utah University Hospital Creator: Koop, Charles Everett, 1916-2013 Date: 4 May 1982 Genre: Letters (correspondence)
4. Letter from C. Everett Koop to Gloria Ruby, United States Office of Technology Assessment (OTA) Creator: Koop, Charles Everett, 1916-2013 Date: 14 April 1982 Genre: Letters (correspondence)
5. Letter from C. Everett Koop to United States Postmaster General Robert Tisch Creator: Koop, Charles Everett, 1916-2013 Date: 30 October 1986 Genre: Letters (correspondence)