sentences:  The layout and design incorporated three round barns.The three round barns in the historic district were inspired by the work of Benton Steele, Samuel Francis ("Frank") Detraz, Isaac and Emery McNamee, and Horace Duncan, who, in various combinations, had built at least 8 round barns in Indiana by mid-1902.Steele was an aggressive marketer of the circular barn concept, and in early 1902 began advertising in various agricultural newsletters.