Williamson
The Williamson Co. was located in the Cincinnati suburb of Oakley, at the intersection of Madison & Ridge Rds. The buildings were torn down about 20 years ago, and an HQ warehouse (like Home Depot or Lowes) was built there. That store only lasted a few years, and the building has become a mega church. Williamson was a very popular brand in this area for many years, and know of several still in service. I'm sure Pete (Rollermatic) remembers it well.
Your Maytag trucks are very nice. What scale are they?