Toolmaker Jack Ferris began his carreer in model railroading with Scale Model Railways a company producing 1/4 inch scale models, in 1929. That company changed hands in 1940, and Jack Ferris joined the rubber/plastics business until 1948 when he founded American Model Toys which reorganised as Auburn Model Trains, in 1954.
Business was not good, and later that same year, Auburn Model Trains was sold to Kusan a plastics and toy company in Nashville, Tennessee. Kusan produced model trains using the former AMT tools as well as new tooling of their own, but, with a decling market, Kusan ceased production of trains in 1960.
The tooling was sold by Kusan to Andy Kriswaulis/Kriswalus of Endicott, New York. Andy produced rolling stock only, trading as Kris Model Trains (KMT), but production ceased on the death of Andy in September 1990, and most of the tooling went to Jerry Williams of Williams Electric Trains, a Maryland maker of reproduction tinplate trains, and employer of Mike Wolf.
Williams decided to concentrate on plastic, using the earlier tooling, and sold the tinplate tooling to Mike Wolf, who later formed Mike's Train House or MTH.
The original AMT/Kusan/KMT tooling was subsequently sold by Jerry Williams to Maury Kline of K-Line, in North Carolina, who also owned and used ex Marx tooling.
Frank Rash of Frank's Roundhouse issued a series of models using ex Williams products.
Part of the original tooling went to Ready Made Toys who sub contracted for Taylor Made Trucks, who issued a small diesel switcher on a flatbed truck. The switcher was subsequently issued by Ready Made Toys as the RMT Beep, still available today.