Sixteenth census of the United States: 1940. : Population. Characteristics of persons not in the labor force, 14 years old and over. Age, sex, color, household relationship, months worked in 1939, and usual major occupation group /

"Prepared ... by Mr. William H. Mautz, chief of economic statistics, and Dr. John D. Durand, employment analyst."- p. iii.At head of title: United States Dept. of Commerce. Jesse H. Jones, secretary. Bureau of the Census. J.C. Capt., director ...Mode of access: Internet