 After returning from Japan, Busch returned to work for Lewis Nixon as manager of the United States Shipbuilding Company in Perth Amboy, New Jersey.In 1909, Busch established the American Architectural Shipbuilding and Development Company, and proposed designed for miniature submarines to the Japanese government.The venture was not a success and Busch went to work for the New Jersey Drydock Company in Elizabeth, New Jersey and was later shipyard manager for the Moore Shipyards of the Bethlehem Shipbuilding Company, and advisor to the president of Eureka Shipyards in Newburg, New York.