The geographical diffusion of human habitation throughout the United States has long interested social scientists. Unfortunately a paucity of detailed data has always hampered accurate cartographic representation of the advance of the frontier in the nation. Although the United States has conducted a decennial population census since 1790, meaningful cartographic displays of the advancing settlement frontier that might otherwise be derived from census data in the nineteenth century are obscured by changes in the number, area, and shape of counties. Florida provides an excellent example of such cartographic problems as well as one possible solution.
Winsberg, Morton D.
"The Advance of Florida's Frontier as Determined From Post Office Openings,"
Florida Historical Quarterly: Vol. 72:
2, Article 6.
Available at: https://stars.library.ucf.edu/fhq/vol72/iss2/6