Harry Von Tilzer (born Aaron Gumbinsky, also known as Harry Gumm), 8 July 1872 – 10 January 1946) was an American composer, songwriter, publisher and vaudeville performer. Harry ran away and joined a traveling circus at age 14, where he adopted his mother's maiden name as his own, seeking to make it sound even classier by tacking on a "Von." So impressive seemed the transformation that eventually all his brothers changed their last name to match his.