Map of Knox County, Illinois.
Thompson, M. H.
cartographic
[S.l.],
1861.
eng
LC Land ownership maps,
Real property--Illinois--Knox County--Maps.
Knox County (Ill.)--Maps.
United States Knox County.
Available also through the Library of Congress Web site as a raster image.
http://hdl.loc.gov/loc.gmd/g4103k.la000120