I believe Barry McGuire was also the songwriter and lead singer on "Green, Green," recorded by the New Christy Minstrels. In the 1970's, he was born again, and recorded a little ditty called "Bullfrogs and Butterflies" (they've both been born again).
I have a Barry McGuire "Anthology" CD, and it's pretty good but a bit overly dramatic. It does not give names of songwriters, but I recognize "Masters of War," "Just Like Tom Thumb's Blues," and "Baby Blue." No wonder McGuire sounds like Dylan to Painter.
-Joe Offer-