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.