We ended up at the Charnley House, where its building history was clarified.   Charnley was a good businessman, who had already employed Sullivan in the design of a house in Mississippi.   Having bought five building plots in north Chicago, he wanted to hire Sullivan again to design a house, but he was preoccupied by other major building projects, including the Auditorium Building, so, instead, got Wright, who was working in the office, to supervise the detail, allowing him to claim responsibility for the design, and its significance, after Sullivan’s death:-