Author: Warren, G. K. (Gouverneur Kemble) - United States. War Department - Siebert, Selmar Source:Library of Congress - Maps Usage Rights: Publication Date: 1858 View Map
Author: Frémont, John Charles - United States. Congress. Senate - Preuss, Charles Source:Library of Congress - Maps Usage Rights: Publication Date: 1846 View Map
Author: United States Employment Service - United States. Farm Labor Service - United States. Department of Labor Source:Library of Congress - Maps Usage Rights: Publication Date: 1962 View Map