I do not see any information about accompanying musicians on any
readily accessible web site discography (e.g. WIRZ, BSNPUBS).
BOB COLTMAN author of "Paul Clayton and the Folksong Revival" (American Folk Music and Musicians Series), Scarecrow Press 2008
might have included information in the book, or may know - anyone have contact for him ??
The PAUL CLAYTON collection at UMD (University of Mass., Dartmouth) might also have information.
Good luck!
Please let us know if you get the answer....
Best wishes, Thomas.