The Unknown Years and UNESCO, Paris, 1944–1948
What Grimmett did next is not quite clear. He had radiation sickness as a result of the work he had done during the war, but he recovered and he ended up as Secretary of the Science Commission of the Conference of Allied Ministers of Education. This was one of the organizations that gave birth to the United Nations Educational Scientific and Cultural Organization (UNESCO) in 1946. Grimmett moved to Paris as a “Programme Specialist-Apparatus Information Officer” in the Natural Science Department. He also became a Counselor at UNESCO. He enjoyed his time there, he traveled a lot and was given increasing responsibilities, but he missed being away from active scientific work. When the offer came from Houston, he could not refuse it.