According to a press release dated October 1, 2009 Octavia Butler’s manuscripts, notebooks, and correspondence are at The Huntington Library in San Marino, CA. Butler, who died in 2006, was a great writer of science fiction. I’ve read some of her work and absolutely adore it. She has a wonderful way of commenting on social issues such as race, power, and the environment.
My thoughts on Kindred are here.