(Pioneers) on City of Edwardsville bldg in Edwardsville, Madison County, IL. IL143/159 (Main St.) NW 0.3 miles from jct with IL157/159 (Vandalia St.) to the mural on the NE side of the road at 400. (N38 48.892 W89 57.572) Photos by Jack & June Schmidt 10-18-09.