Career
He is known for his books about exploration, travel and photography. Notable works from him including several books about the American Civil War, such as The Photographic History of the Civil War, in Ten Volumes (New York: The Review of Reviews Company, 1912). Another of his significant works is "History of World World War II: Armed Services Memorial Edition." He has also made several feature films and wrote the screenplay for the 1919 film Deliverance about Helen Keller.
In 1955 his photograph of children at a Chicago funfair was selected by Edward Steichen for MoMA"s world-touring The Family of Manitoba exhibition.