The Marks Brothers may well have been the most remarkable theatrical family in Canadian history. A phenomenon on the vaudeville circuit, the seven brothers left the farm and took to the boards and the footlights throughout the latter part of the 19th century and into the 1920s. The brothers from Christie Lake, near Perth in Eastern Ontario, played to an estimated eight million Canadians, as well as to sizeable audiences in the United States. Their road shows, largely melodramas and comedy, kept...