Octavia Butler's papers! (and other authors, in CA.)

This library sounds like it has a really impressive collection of authors papers and manuscripts! They just got Octavia Butler's which should be accessible in about a year. Octavia Butler is one of my favorite science fiction authors, but I can only read so much of her at a time, because it is so well written and sometimes depressing (sort of how I view Battlestar Galactica, though her works are much more internally consistent. Also, I finish books by Butler. I am stuck on season 4.5 of BSG, and apparently I am never, ever going to finish.)

The Huntington Library is in California, so that could be an issue and you have to submit an application but their collections look amazing. They have papers from Jack London, Christopher Isherwood, W.H. Auden, Langston Hughes, and Charles Bukowski. If you can't make it out there, it looks like you can request reproductions here.