Very long list, including;
Utah Phillips
Dave Van Ronk,
Thom Ghent,
Bruce Murdoch(otherwise known here on the 'Cat as PEACE),
Jm Ringer,
Kenny Hall,
Brownie McGhee,
Rosalie Sorrels
Kenny Kosek,
Art Thieme,
Woody Guthrie,
Glen Ohrlin...........
The list could go on & on & on................
Mark Ross