Nathan, another web site you might check is Linda Allen's.

She lives in Bellingham, Washington, and is a singer, song collector, and song writer. Some years ago, she put out a couple of song books, complete with notes. One was Washington State Songs and Lore, which, I believe, she did on a Washington State grant. Another was The Rainy Day Song Book. I understand that they may be out of print, but you might check Linda's web site above and click the "Publications" link at the top of her "October Rose" page.

Or you could contact her through her web site. She could be a lot of help with your project.

Good luck!

Don Firth