This was sketched in the car, somewhere between Phoenix and Los Angeles, on April 4, 2014 while we were driving to my niece's wedding. We has rented a loft space downtown through Air BNB and discovered that it was owned by an architect who had a great library of FLW books. One book was an exploration of the Usonian houses. Using the book I was able to show Melissa what my limited ability to sketch couldn't convey. "Look here," I would show her a photograph, "THAT is what I have in mind for the gallery." Or, "That is what the clerestory windows will look like."
I've added graphics to highlight the floor plan because pencil doesn't scan well.