Hartland began her career teaching undergraduates at
Wells College,
Mount Holyoke College, and
Brown University. She moved to Washington, D.C. in 1951, to serve on the
President's Council of Economic Advisers staff. She worked as a researcher and analyst at the
Central Intelligence Agency from 1954 to 1966, and from 1970 to 1978. She was the first woman appointed to the United States Tariff Commission, serving from 1965 to 1969. Her appointment was announced on the same day as
Thurgood Marshall was appointed
Solicitor General, and she appears news photographs with
Lyndon B. Johnson and Marshall, as another "first". In 1965, Hartland-Thunberg was one of the recipients of the Federal Woman's Award, and she chaired the committee that produced a 1967 report "Federal Woman's Award Study Group on Careers for Women: Progress Report to the President". In 1979, she became Director of Economic Research at the
Georgetown University Center for Economic and Strategic Studies, and the William M. School Fellow in International Business, also at Georgetown University. In 1996 she gave an interview to the Pembroke Center Oral History Project at Brown University. == Selected works ==