Butterworth, William Walton 

also known as W. Walton Butterworth — of Louisiana. Born in New Orleans, Orleans Parish, La., September 7, 1903. Foreign Service officer; U.S. Ambassador to Sweden, 1950-53; Canada, 1962-68. Died in 1975. Interment somewhere in Princeton, N.J. (http://politicalgraveyard.com/bio/butterworth.html) ——————————– Butterworth, William Walton (1903-1975) Foreign Service officer 1949 Assistant Secretary for Far Eastern Affairs 1950 Assistant Secretary for Japanese Affairs 1950Ambassador Extraordinary and Plenipotentiary, Sweden 1959 Representative, European Communities, Brussels 1962 Ambassador Extraordinary and Plenipotentiary, Canada (http://www.state.gov/r/pa/ho/po/11393.htm).