Cass Gilbert which now houses the George Gustav Heye Center. Gilbert served on the U.S. Commission of Fine Arts from 1910 to 1916. In 1906 he was elected into the National Academy of Design as an Associate member, and became a full Academician in 1908. Gilbert served as President of the Academy from 1926 to 1933. Gilbert was a skyscraper pioneer; when designing the Woolworth Building he moved into unproven ground — though he certainly was aware of the ground-breaking work done by Chicago architects on skyscrapers and once discussed merging firms with the legendary Daniel Burnham — and his technique of
Lewis Cass Ledyard Burlingham, Edward Julius Berwind, Morgan J. O'Brien, William Sloane Coffin Sr., Herbert Eustis Winlock, Arthur Curtiss James, Frank L. Polk, Cass Gilbert, Edwin H. Anderson, Harry M. Lydenberg, Keyes Metcalf, John G. Milburn, and Devereux Milburn. His estate was valued in excess of $10,000,000 upon his death. Through his son, he was the grandfather of Lewis Cass Ledyard III (1911–1990), Dorothy Cass Ledyard, who first married Hugh McLeod Fenwick (1905–1991) (he divorced her in 1931 to marry Millicent Vernon Hammond), and later, Richard Allen Knight (d. 1947), in 1933, and Ruth Emery Ledyard, who married William de Rham, a great-great