. "1851-03-17Z"^^ . "1851Z"^^ . "1929Z"^^ . . . "Proctor, Frederick Freeman"@en . "1929-09-04Z"^^ . "American businessman" . "Frederick Freeman Proctor"@en . . "Frederick Freeman Proctor (March 17, 1851 \u2013 September 4, 1929), aka F.F. Proctor, was a vaudeville impresario who pioneered the method of continuous vaudeville. He opened the Twenty-third Street Theatre in New York City."@en . . .