Daniels began his career at his family business, Archer Daniels Midland, in 1914. Daniels joined the
United States Foreign Service in 1921. He "was assigned to the American delegation to the Disarmament Conference in Washington, and later to the American embassies in Brussels, Rio de Janeiro and Rome." During
World War II, he was "chief in the chemical division of the
War Production Board and later as head of the Food Requirements Committee of the
War Food Administration." Daniels served as the president of Archer Daniels Midland from 1947 to 1958 and as its chairman from 1958 to 1964. ==Personal life and death==