De Guerville began teaching French at Milwaukee Women's College in 1889. In 1890 he established the "Le Courrier Francais" newspaper for the Milwaukee and Chicago francophone community. Baillot began his career as commercial agent in 1891 with a stereopticon presentation of the 1889 Exposition Universelle de Paris (Paris World's Fair) to an audience in St. Paul, Minnesota. In 1892 de Guerville traveled to Japan, Korea, China, Ceylon, and Europe as a Special Commissioner for the World Columbian Exposition (the Chicago World's Fair) of 1893, where he promoted the event to kings, emperors, and heads of state.