Fourteenth census of the United States: 1920Charles S. Sloane, United States. Bureau of the Census · First published 1923Open the Tome
Estimates of population of the United States, 1910, 1911, 1912, 1913, 1914, 1915, and 1916Charles S. Sloane, United States. Bureau of the Census · First published 1916Open the Tome
