Sad news. I've got a stack of Prather's Shell Scott books next to my bed.
has some good information on Prather and a nice interview. That particular interview is what turned me on to Jack Woodford
and his excellent book on writing Trial and Error
.There was a guy named Jack Woodford, who wrote the best book for writers that I ever read. It's called Writing and Selling. It was originally called Trial and Error. If you can find it, I highly recommend that book. I think it's the single best book for people who want to be writers.