Rauner Library holds a small collection of letters by Anaïs Nin. Of interest is a note where Nin lists the possible sources for her name, which she links together at the end of the note by stating "the only thing they agree on, is moon goddess." Also included is a letter from September 1975 where she writes about her battle with cancer. "I suppose you know I have been fighting cancer for 9 months - just recovering very slowly."
Ask for MS-1000 to read the original letters.