Dean Knudsen, William Henry Jackson, United States. National Park Service, Oregon Trail Museum (1997). “An eye for history: the paintings of William Henry Jackson : from the collection at the Oregon Trail Museum”
Henry David Thoreau (2014). “Citizen Thoreau: Walden, Civil Disobedience, Life Without Principle, Slavery in Massachusetts, A Plea for Captain John Brown”, p.133, Graphic Arts Books