F. H. Jenks, A Dictionary of Music and Musicians…
“ The vocalists of the troupe afterwards appeared in opera at the Academy of Music, New York. Subsequent enterprises in which Maurice was interested were as follows:— 1856, concert-troupe Sigismund Thalberg, Mmes. Parodi, Amalia Strakosch (wife of Maurice, née Patti) , Edward Mollenhauer, violinist. Bernhard Ullmann, Thalberg's business manager, was a partner in this enterprise, as well as in that of 1857, Italian opera—Mmes. de la Grange, d'Orme, Strakosch, d'Angri, Vestvali, Frezzolini, Sigs. Labocetta, Macaferri, Gassier, Carl Formes. ”
