DescriptionDistribution of US Rural Population during 1910.pdf
English: This map shows the population distribution of the 46 states and 2 territories of the mainland United States and the remaining extent of the frontier by 1910.
Date
Source
United States. Bureau of the Census. "Illustrations: Population" in Statistical Atlas of the United States, 1910 (July 1914).
https://fraser.stlouisfed.org/title/74/item/492434, accessed on January 6, 2020.