• Ilinois State Archives (includes many online records)
• Illinois Digital Archives
• Newberry Library
• USGenWeb Free Census Online Inventory
• USGenWeb Helpful Links
• Misc Links to Websites Containing Illinois Information

Locations in Illinois

• Historical Locations Within Illinois
• ILGenWeb Counties

Academics

• Illinois State Normal University Alumni, 1860-1882

Biographies

• Biographical and Memorial Edition of the Historical Encylopedia of Illinois
  - Chicago Publishing Company - 1915 (offsite)


• Twentieth Century Biographical Dictionary of Notable Americans:
  A – C | D – F | G – K | L | M – O | P – Z


• Historical Encyclopedia of Illinois
  A | B | C | D | E | F

Books

• Books We Own (a look-up resource for international genealogical research)
• Internet Archive (a non-profit library of millions of free books, movies, software, music, websites, and more)
• Foreign Versions Variations and Diminutives of English Names
  - Foreign Equivalents of United States Military and Civilian Titles
  United States Department of Justice
  Immigration and Naturalization Services, Rev. 1973

DNA Education

These offsite links will open in a new tab in your web browser.

• "The Genetic Genealogist" - by Blaine Bettinger
• AncestryDNA Learning Hub
• DNA Teseting, What is it, and how can you benefit from it? - by FamilySearch.org

DNA Testing Companies

Note: None of these are free DNA testing sites below:

These offsite links will open in a new tab in your web browser.

• 23andMe
• Ancestry
• FamilyTree DNA
• LivingDNA
• MyHeritage

Gazetteers

• A Gazetteer of the States of IL & MO - 1823
• Cities, Towns, Etc.: A - L M - Z
• Counties

• A Gazetteer of Illinois - 1837
  
  • Cities: A-Che; Chi-G; H-L; M-Q; R-Y
  • Counties

Genealogical Societies in Illinois

• Illinois State Genealogical Society
• Decatur Genealogical Society
• DeWitt Genealogical Society
• DuPage Genealogical Society
• Elgin Genealogical Society
• Fox Valley Genealogical Society (DuPage, Kane, Kendall and Will)
• Genealogical Society of Southern Illinois
• Henry Genealogical Society
• Kane County Genealogical Society
• Kankakee Valley Genealogical Society
• Knox County Genealogical Society
• Lake County Genealogical Society
• Lee County Genealogical Society
• Madison County Genealogical Society
• Marissa Historical & Genealogical Society
• McHenry County Genealogical Society
• North Suburban Genealogical Society
• Northwest Suburban Genealogy Society
• South Suburban Genealogical Society
• St. Clair County Genealogical Society
• Tazewell County Genealogical Society
• Zion Genealogical Society

Immigration

• Illinois Emmigration and Immigration (Wikipedia info and links)

Maps

• Illinois County Maps: Interactive History & Complete List
• Maps of Illinois from Library of Congress
• David Rumsey Map Collection

Military

• 1929 Illinois Roll of Honor
  locations of the burial places of soldiers, sailors, marines, and army nurses who served in any of the wars of the United States and are buried in Illinois
• Illinois War of 1812 Veterans
• The Constitution and Register and Membersip of the General Society of the War of 1812
• Illinois Winnebago War Veterans
  militiamen found on 1827 company rosters
• Illinois Black Hawk War Veterans
  1831 and 1832 companies including 2 Indian companies
• Illinois Mexican War Veterans
  A database of almost 6,500 Illinois men who enlisted as volunteers for the Mexican War (1846-1848). You can search for the name of the veteran. The place of enlistment is listed by city, not county. The troops would organize and then travel to a designated city to be enlisted.
• Illinois Civil War Muster and Descriptive Rolls
• Illinois Civil War Veterans of Missouri Units
• Illinois Civil War Veterans Serving in the U.S. Navy
• Illinois Soldiers' and Sailors' Home Residents (1887-1916)
• Illinois Spanish–American War Veterans
• Illinois Veterans' History Project
• ILGenWeb Civil War Project

Newspapers

• Illinois Newspaper Directory Participant Locator at Abraham Lincoln Presidential Library (Sangamon County, IL)
• Elephin, world's historical newspaper archives
• Digital Archives of the Beardstown Houston Memorial Public Library
• Illinois Digital Newspaper Archives
• Library of Congress Chronicling America

Places of Interest

• Monuments and Memorials in Illinois
• State Historic Sites
  Illinois Ntural Resources Monuments and Memorials
• Illinois State Parks
• Parks & Memorials of the State of Illinois

Politicians

• Altgeld, John Peter, Governor
• Beveridge, John Lowrie, Governor
• Bissell, William H., Governor
• Cullom, Shelby Moore, Governor
• Deneen, Charles Samuel, Governor
• Dunne, Edward Fitzsimmons, Governor
• Fifer, Joseph Wilson, Governor
• French, Augustus C., Governor
• Hamilton, John Marshall, Governor
• Matteson, Joel Aldrich, Governor
• Oglesby, Richard J., Governor
• Palmer, John M., Governor
• Tanner, John Riley, Governor
• Wood, John, Governor
• Yates, Richard, Governor
• Yates, Richard Jr., Governor

Religion

• History of the Presbyterian Church in the State of Illinois, 1879
• Pastorates of German Congregational Churches in Illinois to 1938

Vital Records

• Illinois Statewide Death Index (1916–1950)
• Illinois Statewide Death Index, Pre–1916
• Illinois Statewide Marriage Index, 1763–1900

The following reference materials were used to create the ILGenWeb References project:

1. US 1895 Atlas - Map of Illinois
2. USGS Geographic Names Information Systems
3. A Gazetteer of the States of Illinois and Missouri, Beck, Lewis C., A.M., Albany: Printed by Charles R. and George Webster, 1823
4. A Complete Pronouncing Gazetteer or Geographical Dictionary of the World, Thomas, J., MD, and Baldwin, T., Editors. Philadelphia: J. B. Lippincott & Co., 1857
5. A Gazetteer of Illinois, Peck, J. M. Philadelphia: Grigg & Elliot, 9 North Fourth Street, 1837
6. Atlas of Henry County to which is added an Atlas of the U.S. , Chicago: Warner & Beers, Publishers, 1875
7. Pioneers of Illinois , Matson, N. Chicago: Knight & Leonard, Publishers, 1882
8. History of Vermilion County, Illinois , a tale of its evolution, settlement, and progress for nearly a century. Jones, Lottie E. Chicago: Pioneer Publishing Company. 1911
9. The White City , The Historical, Biographical and Philanthropical Record of Illinois. John Moses and Paul Selby. Chicago: Chicago World Book Company, 1893.
10. Biographical and Memorial Edition of the Historical Encyclopedia of Illinois, Volume I . Newton Bateman, LL.D. and Paul Selby, A.M., and Special Authors and Contributors. Chicago: Chicago World Book Company, Munsell Publishing Company Publishers, 1915.
11. Directory Of The City Of Chicago, Illinois, For 1843 ; Chicago: Fergus Printing Company, 1896 reprint.
12. Photo Postcard postmarked 1907 offered for sale on Ebay. The photo was of the Christian Church, Pala, IL.
13. History of Grundy County, Illinois, Chicago: Munsell Publishing Company, 1914.
14. History of Adams County, Illinois, Chicago: Murray, Williamson & Phelps, 1879.
15. History of Bond and Montgomery Counties, Illinois, Edited by William Henry Perrin, Chicago: O.L. Baskin & Co., 1882.
16. Bond County ILGenWeb
17. Historical Encyclopedia of Illinois, Edited by Newton Bateman, Paul Selby & J. Seymour Currey; Chicago: Munsell Publishing Co., 1921.
18. Biographical and Memorial Edition of the Historical Encyclopedia of Illinois , by Newton Bateman & Paul Selby; Chicago: Munsell Publishing Co., 1915.