Hilldring went on to become a career officer in the Army.[2] In this capacity, he was posted in the Philippines.[7] In 1936, he was appointed to the General Staff of the United States Army.[2]
In 1950, Hilldring became foreign-operations manager of General Aniline & Film, a Swiss chemical firm that was seized by the U.S. during World War II on suspicion of Nazi domination.[9] He was promoted to executive vice president in 1954, and became the company's president in 1955.[9]
^Columbia College (Columbia University). Office of Alumni Affairs and Development; Columbia College (Columbia University) (1955). Columbia College today. Columbia University Libraries. New York, N.Y. : Columbia College, Office of Alumni Affairs and Development.
^Columbia College (Columbia University). Office of Alumni Affairs and Development; Columbia College (Columbia University) (1997). Columbia College today. Columbia University Libraries. New York, N.Y. : Columbia College, Office of Alumni Affairs and Development.
^Dale M. Hellegers, We the Japanese People: World War II and the Origins of the Japanese Constitution (Stanford University Press, 2001), p. 162