A day away: The enchanting legacy of the Thomas Leiper House- quarrying business leipers ,While purists can contest it, Leiper's ox-drawn railroad that hauled stone from the quarry to shipping docks on the Delaware River is considered to be the first railroad (1809) in the country.A day away: The enchanting legacy of the Thomas Leiper HouseWhile purists can contest it, Leiper's ox-drawn railroad that hauled stone from the quarry to shipping docks on the Delaware River is considered to be the first railroad (1809) in the country.