Background
Posthuma, Helen Marie was born on January 4, 1920 in Bisbee, Arizona, United States. Daughter of Harold Chamberlain and Harriet Elizabeth (Jones) Stull.
Posthuma, Helen Marie was born on January 4, 1920 in Bisbee, Arizona, United States. Daughter of Harold Chamberlain and Harriet Elizabeth (Jones) Stull.
Bachelor in Spanish cum laude, Pomona College, 1941; postgraduate, University of Southern California, 1942.
Teacher Fontana (California) Junior High School, 1943. With research department Aerojet Engineering Company, Azusa, California, 1945. Fashion model Copacabana Hotel, Rio de Janeiro, 1945.
Travel consultant, since 1982. Board directors Art Center College Design, Pasadena, California.
Member Huntington Memorial Clinic Auxiliary, Pasadena, Altadena Guild Huntington Hospital. Member American Contract Bridge League, Valley Hunt Club (Pasadena), Town Club (Pasadena), Pi Lambda Theta.
Married Ynte Meindert Posthuma, June 28, 1941. Children: Stephen Chamberlain, John Robert.