I've just had the strange experience of rifling through Sylvia Plath's library!
Her library has been catalogued in librarything here, if you're a member of librarything you can see how many books you have in common. Fascinating stuff, isn't the internet wonderful.
Giggled when I saw Spock's Baby and Childcare in her library, is there anyone in the '50's who didn't have this book?!