William McClelland served as a Representative from Pennsylvania in the United States Congress from 1871 to 1873. A member of the Democratic Party, William McClelland contributed to the legislative process during 1 term in office.

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