Sheean, Vincent
Oscar Hammerstein I
The life and Exploits of an Impresario
New York: Simon and Schuster, 1936. xx, 363 p.
       17 illus., Index.
Annali del Teatro Italiano : Volume secondo 1921
Milano: Industrie Grafiche Amedeo Nicola & C., 1923. [vii, 499 p.
       Note: Covers the period 1901-1920
Lee, Charles
Great Singers of the Age : Short Studies of the Lives and Work of Past and Present Great Singers
London: The Gramophone Co., Ltd., n.d. [c.1910]. 86 p.
       71 illus.
       Note: Brief biographies of operatic and concert singers
Saxe Wyndham, Henry
Stories of the Operas and the Singers Containing the Plots of the Operas and Biographical Sketches with Portraits of the Artists
London: John Long, Ltd., 1910.96 p.
       61 illus.
       Note: Biographical notes for fifty-two Covent Garden singers