1. Letter from Henry Margenau, Yale University to Marshall W. Nirenberg Creator: Yale UniversityMargenau, Henry, 1901-1997 Date: 31 January 1989 Genre: Letters (correspondence)
2. Letter from Frank H. Ruddle to Marshall W. Nirenberg Creator: Ruddle, Frank H.Yale University Date: 17 March 1971 Genre: Letters (correspondence)
3. Letter from Eric J. Nestler to Marshall W. Nirenberg Creator: Yale UniversityNestler, Eric J. Date: 9 February 1989 Genre: Letters (correspondence)