"Danny Boy" first charted in 1918 as a number five recording by Ernestine Schumann-Heink.
In 1915, she appeared as herself in the early documentary film Mabel and Fatty Viewing the World's Fair at San Francisco, which was directed and starred by Fatty Arbuckle.
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Warrack, John and West, Ewan (1992), The Oxford Dictionary of Opera, 782 pages, ISBN 0-19-869164-5
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In the movies of the 1930s, many a buxom opera singer/instructor/matron was modeled on her; see for instance 1937's Stage Door.
Thousands of people have heard it, clothed with the harmonizing which our ears demand; it is lying upon music Tables all over the land, has been sung by many of the world's famous singers, including Schuman-Heink, Julia Culp and Alice Nielson.
Around this time he also served as accompanist for singers Ernestine Schumann-Heink and Dame Clara Butt in their Canadian recital tours.
Robert Schumann | Schumann | Ernestine Schumann-Heink | John Schumann | Robert Schumann International Competition for Pianists and Singers | Robert Schumann Hochschule | Horst Schumann | Ralf Schumann | Ernestine Gilbreth Carey | Ernestine Anderson | Franz Schumann | Elisabeth Schumann | Winfried Otto Schumann | Schumann Center for Media and Democracy | Princess Ernestine of Saxe-Weimar | Peter Schumann | John Schumann and the Vagabond Crew | Ernestine Yolanda de Ligne D'amblisse | Ernestine Panckoucke |
His brother August had returned to Germany where he was killed in action with the Imperial German Navy when his U-Boat hit a mine in the Mediterranean Sea.
Many of Giovanni’s students became international opera stars including Irene Abendroth, Marcella Sembrich, Ernestine Schumann-Heink, Paul Bulss, Roberto Stagno, David Bispham and Franz Nachbaur.
Many of the greatest opera stars of the era appeared with the company during its four year history; among the most notable were Nellie Melba, Lillian Nordica, Luisa Tetrazzini, Ernestine Schumann-Heink, Giovanni Zenatello, Lina Cavalieri, Mary Garden, John McCormack, Lalla Miranda, Alessandro Bonci, Charles Dalmorès, Giovanni Polese, Maurice Renard, Alice Zeppilli, and Nicola Zerola.