For the most up to date resources, please use the University's Online Catalog. The dewey call number for Grundy County typically starts with "977.326". Some common subject headings for Grundy County are:
Grundy County (Ill.) --Biography.
If you have questions about using the online catalog or subject headings, please see How To use Our Library. We've provided a few areas below to start you off.
Historical encyclopedia of Illinois / edited by Newton Bateman, Paul Selby,; and History of Grundy County (historical and biographical) by special authors and contributors. Chicago, Munsell Publishing Co., 1914.
Biographical and genealogical record of La Salle and Grundy counties, Illinois. Chicago : Lewis Publishing Company, 1900.
History of Grundy County, Illinois : containing a history from the earliest settlement to the present time ... , biographical sketches, portraits of some of the early settlers, prominent men, etc. Chicago : O.L. Basken & Co., Historical Publishers, 1882.
Ullrich, Helen Stine. This is Grundy County: its history from beginning to 1968. Dixon, Ill., Rogers Print. Co. 
UIUC affiliates or patrons using computers on-campus can access past census data via Heritage Quest.
Geo. A. Ogle & Co. Standard atlas of Grundy County, Illinois : including a plat book of the villages, cities and townships of the county, map of the State, United States and world, patrons directory, reference business directory and departments devoted to general information, analysis of the system of U.S. Land Surveys, digest of the system of civil government, etc. etc. / Compiled and published by Geo. A. Ogle & Co. publishers and engravers. Chicago : Geo. A. Ogle & Co., 1909.
Rockford Map Publishers. Triennial atlas & plat book, Grundy County, Illinois. Rockford, Ill. : Rockford Map Publishers, [196- - 197-]
W.W. Hixson & Co. Plat book of Grundy Co., Ill. [cartographic material] Rockford, Ill., [1931?]
Warner & Beers. Atlas of Grundy Co. and the State of Illinois [cartographic material] : to which is added an atlas of the United States, maps of the hemispheres, &c., &c., &c. Chicago : Warner & Beers, 1874, c1872.
More information on can be found on our Web Resources Page as well as in the Illinois County Bibliography, which is shelved with 016.9773.
University of Illinois at Urbana-Champaign
July 30, 2007