William Martin is buried at the Catholic Presbyterian Church Cemetery, Blackstock, South Carolina.Historical marker for the Mount Olivet Church near Winnsboro, South Carolina, where William Martin served as a pastor.Historical marker for the graveyard of the Richmond Reformed Presbyterian Church located near Mitford, South Carolina.This historical marker at Vow Graveyard in Ballymoney, County Antrim, Northern Ireland commemorates the that William Martin was the first Reformed Presbyterian (Covenanter) minister ordained in Ireland.
