William McManus served as a Representative from New York in the United States Congress from 1825 to 1827. A member of the Adams Party, William McManus contributed to the legislative process during 1 term in office.

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