The Mixed Emotions from Findlay, Ohio, and nearby Arlington.
Band members included Mike Brown, David Reddick and Denny Van Weelden.
They had two 45s on the JWJ label:
JWJ 1008/9: Search My Heart / My Backdoor (October 1968)
JWJ 1012/13: Through the Looking Glass / Live Today (1969)
I wonder if the ad worked for them.