The answer to the crossword for the term 'FIRST NAME IN ARCHITECTS' is EERO, a four letter name. Eero Saarinen was a Finnish-American architect and industrial designer of the mid-20th century. He is known for his neo-futuristic style, which was popularized in the 1950s and 1960s. He designed many iconic buildings, including the St. Louis Gateway Arch, Dulles International Airport, and the TWA Flight Center at JFK Airport.