William Anderson (1762 – December 16, 1829) was an American politician who served as a Democratic-Republican member of the U.S. House of Representatives for Pennsylvania's 1st congressional district from 1809 to 1815 and from 1817 to 1819.
He was appointed an associate judge of the county court on January 5, 1826, and resigned in 1828 to become an inspector of customs in Philadelphia.
[3] Under Pennsylvania gradual abolition law, enslavers had six months to register the children of women they held in bondage.
On July 2, 1806, Anderson registered a nineteen-week-old "male mulatto bastard child" named Francis as his property for twenty-eight years with the Delaware County clerk of courts.
[4][5] This registration reveals that Anderson owned Francis' mother, whom he held in either lifetime or term slavery.