The "Great Silkie" is a traditional ballad (see the DT) and the tune Judy sings was written by James Waters and the copyright is held by Folk-Legacy Records, Inc., Sharon, CT 06069. "Man of Constant Sorrow" is also a traditional song that has been found in many versions and often recorded. I suspect "Maid" is simply a gender revision for a female vocalist; it's been many years since I heard Judy sing it. On the other hand, "Girl of Constant Sorrow" is a complete rewrite by Sarah Ogan Gunning, half-sister to Aunt Molly Jackson, both strong Appalachian women and veterans of the miners' struggles to organize in the coal fields of Kentucky. The copyright for Mrs. Gunning's song is also held by Folk-Legacy.

I can't help you with the others, I'm afraid.

Sandy