He is best known for his works The Oregon Trail: Sketches of Prairie and Rocky-Mountain Life and the 7 volume France and England in North America. Published in 1907 Pioneers of France in the New World is an in depth look at the history of Canada and the Northwest. Some of the topics covered area as follows: Early French Adventure in North America; La Roche-Champlain-De Monts, Acadia Occupied, Lescarbot and Champlain, Early Spanish Adventure, Villegagnon, The Great War Party; Hostile Sects-Rival Interests, and The English at Quebec