http://pec.lib.wvu.edu/record/P36591896The Northern lake frontier during the Civil War. Journal article reprint from: <em>Annual Report of the American Historical Association</em>, v.1 (1896). Callahan, James Morton, 1864-1956.Great Lakes (North America)--History--Civil War, 1861-1865.United States--History--Civil War, 1861-1865.14256