Tonebenders
Columbus, 1967
According to the info on the Northland Battle of the Bands LPs, the Tonebenders were an all girl band. On the 2 LP set, they perform "Little Black Egg", the Nightcrawlers hit that became a must have on every central Ohio band setlist.
Other than that, we don't know much else about the band, strange that the identity of something rather unique like an all girl band would be obscured but we are hoping to clear that up. It's possible that the band used that name just for the BOTB and had a different name, or were parts of other bands.