The Marc IV of Fort Thomas, Kentucky got a profile in the Enquirer on January 28, 1967. Members were:

Mike Reilly – lead singer and bass
Rick Schmidt – organ
Ken Steggeman – drums
Steve Schiller – lead guitar

The news clipping says the group “banded together six months ago … have appeared at Granny’s, WSAI hops, school dances and every Sunday afternoon at the Avenue Club in Bellevue, Kentucky.”

I’ve also found an ad for the group from June of ’67 for an appearance at Capt. Al’s Ballroom in the Trolley Tavern at Anderson Fery Road with the Rambunctions.

Although the article continues “the boys have copyrighted several songs and plan to record them this spring in Lexington”, so far I haven’t found any record or copyrights by the group.