Deciphering Codes Appended to 1910/1920/1930/1940 Census in One Step

Stephen P. Morse, PhD   Joel D. Weintraub, PhD   David R. Kehs, PhD



1910

Occupation Codes used in the 1910 Census


1920

Occupation Codes used in the 1920 Census


1930

Occupation Codes used in the 1930 Census
Language and Nativity Codes used in the 1930 Census
Indian Codes used in the 1930 Census


1940

Occupation Codes used in the 1940 Census
Miscellaneous codes used in the 1940 Census


Stephen P. Morse, Joel D. Weintraub, David R. Kehs, 2005