Etymologie
() Usona + -ia (1969, Harvard Art Review, page v.3 no.2 p.43:) *“It has been suggested that Wright picked up the name on his first European trip in 1910 when there was talk of calling the U.S.A. 'U-S-O-N-A', to avoid confusion with the new Union of South Africa.”
*:1984, John Sergeant, Frank Lloyd Wright's Usonian Houses: The Case for Organic Architecture, page 16: