Idaho Tri-Weekly Statesman. Boise, ID. 1864–1887.
Illinois Governor. Military Correspondence, 1839–1844. CHL.
Illinois Militia Commission Records, 1841–1844. CHL.
Illinois Register. Vandalia, 1836–1839; Springfield, 1839–1846.
Illinois State Gazetteer and Business Directory, for the Years 1864–5, Embracing Descriptive Sketches of All the Cities, Towns, and Villages throughout the State. . . . Chicago: J. C. W. Bailey, 1864.
Illinois: A Descriptive and Historical Guide. Compiled and Written by the Federal Writers’ Project of the Work Projects Administration for the State of Illinois. American Guide Series. Chicago: A. C. McClurg and Co., 1939.
Illustrated Atlas Map of Cass County, Illinois, Carefully Compiled from Personal Examinations and Surveys. [Edwardscille, IL]: W. R. Brink and Co., 1874.
An Illustrated Historical Atlas Map, Carroll County, MO: Carefully Compiled from Personal Examinations and Surveys. N.p.: Brink, McDonough and Co., 1876.
An Illustrated Historical Atlas of Caldwell County, Missouri. Written by Edwards brothers. Philadelphia: By the authors, 1876.
An Illustrated Historical Atlas of Des Moines County, Iowa. Chicago: A. T. Andreas, 1873.
An Illustrated History of Los Angeles County, California. . . . Chicago: Lewis, 1889.
An Illustrated History of Southern California. Chicago: The Lewis Publishing Company, 1890.
Incorporation Laws of the State of Illinois; Passed at a Session of the General Assembly, Begun and Held at Vandalia the 6th Day of December, 1836. Vandalia, IL; William Walters, 1837.
Indenture, Joseph Knight Sr., Colesville, NY, 14 Apr. 1826. CHL.
Independent Messenger. Milford, MA. 1831–1839
Index to War of 1812 Pension Application Files. National Archives Microfilm Publications, microcopy 313. 102 reels. Washington DC: National Archives and Records Service, General Services Administration, 1960.