I just finihsed reading That book woman by Heather Henson, which is utterly lovely! I highly recommend checking it out - it's about the (real-life) Pack Horse Librarians of the Appalachian Mountains in Kentucky. Founded in the Dirty Thirties by Roosevelt to bring books to reomote regions, the Pack Horse Library Project organised librarians by horse or mule to deliver books every two weeks to residents!
A great story (in book form, and historical form) about bravery and selflessness. Also a great pick for storytimes about reluctant readers. I was all like, I'm not going to cry!!!, until I got to the part where the mother in the story thanks the librarian for making two readers out of one. You'll understand when you read it.
Other Pack Horse Librarian reads:
Down Cut Shin Creek: The Pack Horse Librarians of Kentucky by Kathi Appelt
Night Comes to the Cumberlands: A Biography of a Depressed Area by Harry M. Caudill