Gibbons' band Moving Sidewalks served as backup act to the Hendrix Experience on certain dates in Texas.
Hendrix was so impressed with his playing, he mentioned Gibbons to Johnny Carson when asked whom he thought was an up-and-coming guitarist.
Other students of note at that time at Bellaire H.S.: Randy Quaid and Tommy Schlamme.
One of the Moving Sidewalks was the brother of my friend who lived down the street. I didn't remember Billy playing with them, but I guess he did.