In 1919, Oscar Bryan and his son George Bryan purchased a existing factory and 2.5 acres of land, starting The Bryan Havester Company. George Bryan was a locomotive engineer and had a vast experience in light steam power plants. Based on George Bryans history and the financial backing from the board of directors with the Bryan Harvester Company, the 1st light steam tractor was produced. The tractor was put into full production and introduced to the market on August 5th, 1919. The heart of the tractor was the Bryan Flexible water tube type boiler. It generated 20 HP and produced 600 PSI of working pressure steam.