how does the jeannette walls and her mothers characters change and evolve throughout the novel?

By the memoir's end, Jeannette has finally reconciled her past and present and no longer feels the need to hide behind lies or half-truths. The memoir liberates her and allows her to do what she enjoys most about writing; communicate with the world. Check this bio on Jeanette Walls out,

http://www.goodreads.com/book/show/7445.The_Glass_Castle

As for mother, I'm not sure she changes at all. Like Rex, she is a static character dying tragically (Stabbed by Maureen).