Fox graduated from Wisconsin State College in 1940. She joined the U.S. Naval Reserve in 1943 and was stationed at the Naval Research Station in Washington. She continued to work there as an electronics engineer in radar after her discharge in 1946. In 1951 she joined the National Bureau of Standards as a member of the technical staff of the Electronic Computer Laboratory. Later, she joined the Research Information Center and Advisory Service on Information Processing (RICASIP) where she was involved in producing reviews and bibliographies. From 1966 to 1975 Fox was chief of the Office of Computer Information in the NBS Institute for Computer Science and Technology.