With some related info, here is part of an email I got today from John Wilmott at Celtic Ways:
...."With his hi-tech and folk singing skills Roger hit the road with a portable digital recording studio. On his travels he met up with Joan Baez, Pete Seeger, Tommy Makem, Eliza Carthy, Judy Collins, Jean Ritchie, Odetta, Josh White jnr and digitized them into am amazing album just released on Appleseed called "Treasures From The Folk Den"
Quite a collection of American and Celtic folk songs are on the album ranging from Finnegan's Wake with Tommy Makem to Alabama Bound with Pete Seeger, and the English Waggoner's Lad with Joan Baez and Eliza Carthy.
Treasure's From The Folk Den is available from CDStreet.com
Roger McGuinn is currently on the US leg of a Judy Collins festival tour called "Wildflowers" which includes Ritchie Havens, Janis Ian (who was almost on our roster and still thinking about it) and a few other wonderful veteran folkies along the way."...............................................