1. Letter from Daniel Nathans to David C. Ward Creator: Nathans, Daniel, 1928-1999 Date: 22 February 1971 Genre: Letters (correspondence)
2. Letter from Daniel Nathans to Roy D. Schmickel Creator: Nathans, Daniel, 1928-1999 Date: 8 October 1975 Genre: Letters (correspondence)
3. Letter from Daniel Nathans to Wallace P. Rowe Creator: Nathans, Daniel, 1928-1999 Date: 1 December 1975 Genre: Letters (correspondence)