As a Southerner and also a pretty darn good cook, please allow me to clear up some of this discussion. There are butter peas, which are a field pea that seems like a cross between lima bean and a black eyed pea. And there are butterbeans which are small tender lima beans. Down here in SW Georgia, the dried Fordhooks are called lima beans. They are about the size of a nickle but shaped like a kidney. Not to be confused with kidney beans of course.

BTW, thanks for the link to Little Jimmy Dickens.