As you may recall I contacted you several months ago seeking information concerning Big Wheels. This Adventure started in 2015 when Matt Veerkamp of Veerkamp General Engineering in Placerville, CA found a metal wheel hub. It was labeled “The Holt M.F.G. CO. Stockton CA.” As a Historical Consultant, he asked me to find what the hubs were used on, as he wished to build the item. That started a nine year process of research, phone calls and travel.