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
Lewis Cass Building facelift as of early 2009. Lewis Cass Building Lewis Cass Building is a state government office in downtown Lansing, Michigan named for territorial governor Lewis Cass. It is the Michigan state government's oldest standing office building. The building was added to the National Register of Historic Places as "State Office Building" in 1984. The first state office building in Lansing was constructed in 1853; this was replaced with another building in 1872 and demolished the following year. By the 1910s, the state realized the need for a new office building, and funds were appropriated beginning in 1917 for a new