Question: Consider the eccentric Knoxville businessman with whom George Roby Dempster often staged politcal battles. In what year were they born?
Sentence (from "George Roby Dempster"): During the 1910s and 1920s, the Dempster Brothers Construction Company, operated by Dempster and his brothers, built a number of roads and railroads across the Southern Appalachian region.
Relevant evidence: No