This 1943 article by the noted American sociologist, Willard Waller (1899 – 1945), reported on the impact that W.W. II was having on the American educational system. Waller pointed out that during the course of 1942-43 school year, as many as 189,000 teachers had left their classrooms in order to work in defense plants. The author argued four distinct points that would halt the mass exodus - among them was the cry that "salaries of teachers must be raised to the point where they match favorably with industry."
A 1944 photo-essay on this topic can be read here...
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