Thornburghs rhymes with:
thornburg's, thornburgh's, thornburgs, thornburg's, thornburgh's, thornburgs, thornburg's, thornburgh's, thornburgs, freedenberg's, greenberg's, hoffenberg's, katzenberg's, rittenberg's, rosenberg's, rosenbergs, steinberg's, thornburg's, thornburgh's, thornburgs, wallenberg's
Thornburghs sounds like:
thornberg, thornberry's, thornberrys, thornburg, thornburg's, thornburgh, thornburgh's, thornburgs, thornbury's, thornburys, tranberg, turnovers