I've seen similar threads of the Tennessee and Virginia boards and was just trying to think about Top 40s in Ohio (especially outside the bigger markets). Some that I can remember:
Toledo-WHOT and the 1230 facility
Lima-WCIT (live until the early 70s, and for a time carrying TM Stereo Rock, which could be heard on FM from Ft. Wayne). Lima had nothing on FM other than country and BM until the mid 80s
Celina-WMER (94.3). Automated with Hit Parade from 1968 through about 1971, then self-automated with a couple of live shifts, including a request show on Thursday nights. I remember them broacasting live from the Mercer County fair, bringing turntables, cart machines and even the phone).
Dayton-WONE (until 1970) and WING, WTUE until 1975
We know all about the legendary Cincy and Columbus stations
Marion-WDIF (what a little station at the time!)
Bellefontaine-WTOO AM/FM, later just Stereo TOO-98
Ottawa-WPNM when they first signed on, and daytparted at night in the early 80s
Sure there were plenty more. Interesting stories, anyone?
I'm not taking you to task here, but WONE changed format from top 40 in 1967...they went "MOR" until around 1969, when they went country. WONE-FM began broadcasting, part-time as a Top 40 station around 1970 (perhaps a bit earlier) and around 1971 or 1972 became "WTUE", staying Top 40 until around August, 1975.
More on this coming soon at the Dayton Broadcasters Hall Of Fame Website.