Wish I'd noticed this one earlier. Yup Eric Weissberg sure did play banjo with the Greenbriars. As did Paul Prestopino. Fred Weisz played bass at times. Even RICHARD GREENE was a member for a while! As Yellin said in an interview, "we weren't very good, but we were enthusisatic"! He of course was basing "good" in relation to the bands that they idolized who were all Southern and VERY tight.
Loved the Greenbriars. (even played in a band called the "Gangreen Boys")