William Denning served as a Representative from New York in the United States Congress from 1809 to 1811. A member of the Unknown Party, William Denning contributed to the legislative process during 1 term in office.

William Denning’s service in Congress occurred during a significant period in American history. As a member of the House of Representatives, William Denning participated in the democratic process and represented the interests of constituents, helping to shape the laws and policies that governed the nation.