John McCormack (tenor) with Fritz Kreisler, violin, Vincent O’Brien, piano (tracks 1, 2), Francis Lapitino, harp (track 3), Rosario Bourdon, cello (track 4), Lucrezia Bori, soprano (tracks 17, 18, 19), Lucy Isabelle Marsh, soprano (track 20), Josephine Jacoby, contralto (track 17), Harry Macdonough, tenor (tracks 15, 16, 22), Lambert Murphy, tenor (tracks 15, 16), Reinald Werrenrath, baritone (15-17, 21-22), William F. Hooley, bass (track 22)