Thomas Leiper (15 December 1745 โ 6 July 1825) was a Scottish American businessman, banker and politician who owned a successful tobacco exportation business as well as several mills and stone quarries. He served as a lieutenant in the Philadelphia City Troop during the American Revolutionary War. He built one of the first railways in America and the first in Pennsylvania. The Leiper Railroad was a three-quarter-mile long track on his property in Nether Providence Township, Pennsylvania used to ship quarry stone to market with animal-powered carts.