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
Arthur Gilbert (real estate developer) designer, in 1934, and took her surname. They had a son, Colin. After Rosalinde died in 1995, he married Marjorie Haworth in 1997. They resided in Beverly Hills, California. He became a naturalised American citizen. Colin Gilbert, his only son, was briefly married to Sunny Patterson of Boulder, Colorado. Together, the couple had an only daughter and Sir Arthur's only granddaughter, Windy Lee Gilbert. Windy married Boulder native Terrence P. Gallagher Jr. in Boulder in 1981. Terry and Windy have three boys, Patrick Ryan Gallagher, Keelan Gilbert Gallagher and Colin Arthur Gilbert, Sir Arthur's great grandchildren and the only generation