You are pretty much on the money with names and dates and such Alan, from what I know and have read and been told. Ron O'Toole is still around and lives near me in north St. Louis County. I knew a truck driver for a printing company years ago that was a nephew of Gary Zeller. Art Schaefer Sr. closed the Virginia Ave when he retired and has since passed away. his son, Art Jr., opened another store not far from Buder Park on Gravois Ave. about the same time they closed the other store. They sold off a lot of the models that hung in there ( I managed to buy a Guillow's Fokker D-7 that I had admired since I was a child!) but also kept a lot of the significant models, including that black Tucker Special, and Jim Kostecky's original Formula S. Several old record setting speed models in there also. I always check them out when I go it there.
Type at you later,
Dan McEntee