Dickson, Robert, 1765?-1823. Grignon, Louis, 1783-1860. Thwaites, Reuben Gold, 1853-1913, ed. State Historical Society of Wisconsin. text Personal correspondence. lcgft https://id.loc.gov/authorities/genreForms/gf2014026141 Madison, Wisconsin : Democrat Printing Company, State Printers, 1888. eng "Supplement the Lawe and Grignon papers published in vol. X, Wisconsin historical collections, pp. 94-121." Edited by Reuben Thwaites. Dickson, Robert, 1765?-1823--Correspondence. Grignon, Louis, 1783-1860--Correspondence. Northwest, Old--History--Sources. Wisconsin--History--Sources. Also available in digital form on the Library of Congress Web site. Collections of the State Historical Society of Wisconsin. http://hdl.loc.gov/loc.gdc/lhbum.7689a_0287_0331