Unknown 1968 ? Ft. Wayne area

We need help, Indiana team. Mike R. sent in this unidentified band photo. It was found filed in a Huntington High School 1968 yearbook.
Who are they?
The pose has a very familiar look, not unlike a Dawn 5 photo I have. If it helps any, also in the same book was found a promo shot of the Chosen Few.
Fire in those ideas, any leads, real or imagined, appreciated.