Swedish and Norwegian population in the United States in 1872

Swedish and Norwegian population in 1872, map, drawn by A. de Witzleben, J. Bien lith. New York; source: The Statistics of the Population of the United States, Compiled from the Original Returns of the Ninth Census, 1872; University of Texas Library, Perry-Castañeda Library, Map Collection, http://www.lib.utexas.edu/maps/historical/swede_norway_pop_1872.jpg. Courtesy of the University of Texas Libraries, The University of Texas at Austin.