John Foster Dulles Washington University Law School in Washington, D.C. Both his grandfather, Foster, and his uncle, Robert Lansing, the husband of Eleanor Foster, had held the position of Secretary of State. His younger brother, Allen Welsh Dulles, served as Director of Central Intelligence under Dwight D. Eisenhower, and his younger sister Eleanor Lansing Dulles was noted for her work in the successful reconstruction of the economy of post-war Europe during her twenty years with the State Department. On June 26, 1912, Dulles married Janet Pomeroy Avery (1891–1969), a first cousin of David Rockefeller. They had two sons and a daughter. Their older
Eleanor Lansing Dulles Watson Foster, served as United States Secretary of State under President Benjamin Harrison, for eight months. Her mother's sister married Robert Lansing, Secretary of State under President Woodrow Wilson. Her oldest brother, John Foster Dulles, was Secretary of State under President Dwight D. Eisenhower. Her brother Allen Dulles served as Director of the Central Intelligence Agency from 1953 to 1961. She had two sisters as well. Her nephew Avery Dulles was a cardinal of the Roman Catholic Church. Eleanor Lansing Dulles married Professor David Simon Blondheim (1884–1934) on December 6, 1932. Blondheim had been a Medieval Studies fellow of the