I knew them all. Jerry Walter was probably more the organizer for them then anyone else.
They had some of the feel of the Weavers but they were not what you'd call a copy group.

Not sure that anything ever went wrong with Ernie in the Limelighters. He left probably because he wanted to go into songwriting. He became a successful lyricist.

Lou really defined the two groups with his intelligent raconteur style. He was wonderfully clever which ticked off Lee Hays who thought Lou was a "smart ass". Lou had a dry and satirical approach to folk music whereas Lee was coming from a Will Rogers P.O.V.
Lou had a PHD in musicology.   

Jerry Walter was an important catalyst for the group. He was the banjo player.
Barbara wasn't with them as I recall when they were at the hungry i. Trav, ElmerLee, Jerry and Lou as I recall. They put on a good show.

Jerry's banjo style was like Pete's, mostly up-picking and basic accompaniments. He had a baritone voice. Trav had a tenor voice. ElmerLee could really belt it out.

Frank