| 1. | In 1958, he became the director of the symphony orchestra of the University of Dubuque in Iowa, which became the Dubuque Symphony Orchestra in 1963. À partir de 1958, il dirige l'orchestre symphonique de l'université de Dubuque dans l'Iowa, devenu en 1974 l'orchestre symphonique de Dubuque (en anglais : Dubuque Symphony Orchestra). |