 He was made an ensign in 1943 and was discharged as a lieutenant (junior grade) in 1946.Haskell was personnel manager of Speakman Co. in 1947 and 1948, and president of Greenhill Dairies, Inc., from 1948 until 1953, and then owner and operator of Hill Girt Farm in Chadds Ford, Pennsylvania.He was secretary of the Departmental Council of the United States Department of Health, Education, and Welfare in 1953 and 1954, consultant to the special assistant to U.S. President Dwight D. Eisenhower in 1955, and president of the University of Delaware Research Foundation.