Cass Gilbert Minnesota, and the Library of Congress. Cass Gilbert is often confused with Charles Pierrepont Henry Gilbert, another prominent architect of the time. Cass Gilbert designed the famous Woolworth Building skyscraper on Broadway for Frank W. Woolworth, while Woolworth's personal mansion was designed by C. P. H. Gilbert. The Ukrainian Institute building on Manhattan's 5th Avenue is the work of C. P. H. Gilbert, and often incorrectly attributed to Cass Gilbert. Cass Gilbert should also not be confused with his son, architect Cass Gilbert, Jr. Notes Further reading Cass Gilbert Cass Gilbert (November 24, 1859 – May 17, 1934) was a
Cass Gilbert declined among some professionals during the age of Modernism, but he was on the design committee that guided and eventually approved the modernist design of Manhattan's groundbreaking Rockefeller Center. Gilbert's body of work as a whole is more eclectic than many critics admit. In particular, his Union Station in New Haven lacks the embellishments common of the Beaux-Arts period and contains the simple lines common in Modernism. Gilbert wrote to a colleague, "I sometimes wish I had never built the Woolworth Building because I fear it may be regarded as my only work and you and I both know that