1895

Yellowstone National Park: historical & descriptive.

Cincinnati: The Robert Clarke Co.

1902

A History of the Pioneer Trading Posts and Early Fur Companies of the Missouri Valley and the Rocky Mountains and of the Overland Commerce with Santa Fe.

New York:. Francis P. Harper, 3 vols.

1903

History of Early Steamboat Navigation on the Missouri River: Life and Adventures of Joseph La Barge.

New York: F. P. Harper, 2 vols.

1905

Life, Letters and Travels of Father Pierre-Jean De Smet, S.J., 1801 - 1873

New York. Francis P. Harper, 8 vols

1911

War or Peace

Chicago. A C McClurg