Irene Abendroth, Annie Dirkens, Louise Kirkby Lunn, Franz Pacal, Selma Kurz, Joseph O'Mara, A. Del Campo, Leopold Demuth, Les Troubadors Toulousains, W.A. Fransella, Studio Pianist, Ellen Beach Yaw, Desire Pauwels, Gabriel Soulacroix, Fraulein Vroni Eidner, Paul Daraux, Giovanni Apostulo, Marie Tempest, Kate Cove, Hermann Winkelmann, Edna May, Caro Roma, Ferruccio Giannini, Theodor Bertram, Edith Clegg, Felix Asch, Rene Fournets
