Which Frank Lloyd Wright house between the 1950's and 60's is the largest of the Usonian Automatics built: Theodore A. Pappas House, or Gerald B. and Beverley Tonkens House?
Theodore A. Pappas House:  The Pappas house is a rambling four-bedroom house, and after the Gerald B. and Beverley Tonkens House, is the largest of the Usonian Automatics built. Gerald B. and Beverley Tonkens House: The Gerald B. and Beverley Tonkens House, also known as the Tonkens House, is a single story private residence, designed by American architect Frank Lloyd Wright in 1954.
i don't know