William J. Duane
 William John Duane (May 9 1780 – September 27 1865) was an Irish born American politician and lawyer from Pennsylvania.Born in Clonmel County Tipperary Ireland Duane emigrated to the United States with his parents William Duane and Catherine Corcoran in 1796 settling in Philadelphia. He assisted his father in publishing the Aurora a Philadelphia newspaper until 1806.