Architect's drawing of north elevation.
In 1990, the McKim, Mead & White architectural floor plans for the Butler mansion were found in the Springville, NY barn of Harold LeRoy Olmsted (1886-1972 - also a Buffalo architect/landscape architect & artist).
The McKim, Mead & White plans were donated by the Olmsted Family to The Buffalo/Erie County Historical Society.
The Olmsted family has no idea why Harold had
these plans, but assume he may have been asked to design some changes for a subsequent