William P. Foster was an American jurist from Virginia. Foster was appointed to the Illinois Supreme Court on October 9, 1818 by the Illinois State Legislature with no previous experience as a lawyer.Illinois Supreme Court biography
/ref> Foster never met with the Supreme Court, and never presided over his assigned circuit court. He resigned on July 7, 1819, before the Supreme Court's first December session.



* Category:Justices of the Illinois Supreme Court Category:Year of birth missing Category:Year of death missing {{Illinois-politician-stub