The Dana-Thomas House was built for Susan Lawrence Dana, a social activist and socialite, in 1902. Because of the unlimited budget of the patron, Frank Lloyd Wright created some of his finest and most detailed art glass compositions for the elaborate home in Springfield, Illinois. Many are geometric abstractions of natural elements with the midwestern sumac plant as the primary motif. The natural form has been interpreted, reduced to its basic geometry, and used in a variety of ways on more than two hundred windows, doors, skylight panels, and light fixtures throughout the home. One of the most notable is the butterfly art glass design arching around the entry door.