One Thousand White Women: The Journals of May Dodd is a novel by Jim Fergus. This book was published many years ago, but appears to have been recently re-released. I was able to check out a copy from my library, though I've seen a different printing on prominent display at Target recently.
The story combines several of my favorite elements: historical fiction, the Great Plains, and the experience of a person who finds herself surrounded by a totally foreign culture. Our heroine, May Dodd, volunteers for the Brides for Indians program to escape her confinement in an insane asylum on the basis that she was "promiscuous," having engaged in a relationship with a servant in her family's household that yielded two children. May then becomes something of a leader among the first installment of brides given to fulfill the compromise. The narrative tool of the book has May writing journal entries describing the events are her feelings about the whole program. I thought the book had a compelling story which was told in an engaging manner, so I'm reluctant to go into more details for fear of spoiling the plot twists!. I thought this book was great and I highly recommend it!