Architectural and landscape plans for the Darwin D. Martin House and Graycliff, the summer home of the Darwin D. Martin family which were designed by Frank Lloyd Wright.

Papers, circa 1878 to 1935, of Darwin D. Martin (1865-1935) of Buffalo, New York, an official of the Larkin Company and an early client of Frank Lloyd Wright.

Oral history interviews with persons associated with the Darwin D. Martin House, Buffalo, New York, and other buildings designed by Frank Lloyd Wright.