View source for File:Dwight Durkee Jr at the throttle of 1873 American Popular Science Jan 1957.PNG

Back-Yard Choo Choo. Dwight Diurkee Jr. of Cupertino, California, says he didn't know a firebox from a snifting valve when he began the drawings and patterns for this 1873 locomotive.  Some 1,500 hours later, a 100-pound head of steam had it rolling.  He fabricated most parts with a hacksaw and acetylene torch, jobbed out a few bit castings to a foundry.  Popular Science, January 1957