All listings based extensively on Timothy Samuelson’s “Revised List of Buildings” in Louis Sullivan, Prophet of Modern Architecture by Hugh Morrison, pp. 256–288. Some post-1998 updates were necessary — in particular, 3 buildings lost to fire in 2006, and 1 lost to Hurricane Katrina in 2005. All marker positions are approximations except in cases where existing structures may be accurately located in OpenStreetMap.
