Thomas Hartley served as a Representative from Pennsylvania in the United States Congress from 1789 to 1801. A member of the Federalist Party, Thomas Hartley contributed to the legislative process during 6 terms in office.

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