1. Letter from James D. Watson to Francis Crick Creator: Watson, James D., 1928- Date: 31 March 1965 Genre: Letters (correspondence)
2. Letter from James D. Watson to Francis Crick Creator: Watson, James D., 1928- Date: 27 May 1960 Genre: Letters (correspondence)
3. Letter from James D. Watson to Francis Crick Creator: Watson, James D., 1928- Date: 12 April 1958 Genre: Letters (correspondence)