| | Database Title | Category | | Names |
|---|
 | The Dearborns: A Discourse Commemorative of the Eightieth Anniversary of the Occupation of Fort Dearborn | Birth, Marriage and Death Records | | 5,541 |
 | Kentuckians in Illinois | Birth, Marriage and Death Records | | 27,190 |
 | Record of the Services of Illinois Soldiers | Birth, Marriage and Death Records | | 24,284 |
 | Alexis Visitor (Alexis,Illinois) | Newspapers and Periodicals | | 480 |
 | Alton Daily Telegraph (Alton,Illinois) | Newspapers and Periodicals | | 317,457 |
 | Alton Observer (Alton,Illinois) | Newspapers and Periodicals | | 12,042 |
 | Alton Telegraph (Alton,Illinois) | Newspapers and Periodicals | | 325,955 |
 | Alton Telegraph, The (Alton,Illinois) | Newspapers and Periodicals | | 22,018 |
 | Alton Weekly Courier (Alton,Illinois) | Newspapers and Periodicals | | 145,493 |
 | Alton Weekly Telegraph (Alton,Illinois) | Newspapers and Periodicals | | 17,375 |
 | Commercial Bulletin (Troy,Illinois) | Newspapers and Periodicals | | 211 |
 | Daily Free Press (Carbondale, Illinois) | Newspapers and Periodicals | | 2,814,231 |
 | Daily Journal and Republican, The (Freeport,Illinois) | Newspapers and Periodicals | | 58,481 |
 | Daily Journal, The (Freeport,Illinois) | Newspapers and Periodicals | | 201,697 |
 | Deutscher Anzeiger (Freeport,Illinois) | Newspapers and Periodicals | | 28 |
 | Evening Telegraph (Alton,Illinois) | Newspapers and Periodicals | | 17,361 |
 | Forest Park Review (Forest Park,Illinois) | Newspapers and Periodicals | | 51,257 |
 | Freeport Budget (Freeport,Illinois) | Newspapers and Periodicals | | 2,137 |
 | Freeport Daily Evening Journal (Freeport,Illinois) | Newspapers and Periodicals | | 6,666 |
 | Freeport Daily Journal (Freeport,Illinois) | Newspapers and Periodicals | | 42,682 |
 | Freeport Daily Journal, The (Freeport,Illinois) | Newspapers and Periodicals | | 220 |
 | Freeport Evening Journal (Freeport,Illinois) | Newspapers and Periodicals | | 441 |
 | Freeport Journal-Standard (Freeport,Illinois) | Newspapers and Periodicals | | 265,864 |
 | Freeport Republican (Freeport,Illinois) | Newspapers and Periodicals | | 14,677 |
 | Illinois Monitor, The (Freeport,Illinois) | Newspapers and Periodicals | | 7,074 |
 | North-West, The (Freeport,Illinois) | Newspapers and Periodicals | | 7,163 |
 | Prairie Democrat, The (Freeport,Illinois) | Newspapers and Periodicals | | 1,014 |
 | Railroad Telegrapher, The (Peoria,Illinois) | Newspapers and Periodicals | | 2,327 |
 | Sterling Daily Gazette (Sterling,Illinois) | Newspapers and Periodicals | | 5,147 |
 | Troy Call (Troy,Illinois) | Newspapers and Periodicals | | 49,452 |
 | Troy Monitor (Troy,Illinois) | Newspapers and Periodicals | | 535 |
 | Troy Star (Troy,Illinois) | Newspapers and Periodicals | | 1,310 |
 | Troy Weekly Call (Troy,Illinois) | Newspapers and Periodicals | | 104,886 |
 | Weekly Bulletin (Troy,Illinois) | Newspapers and Periodicals | | 3,065 |
 | Weekly Call (Troy,Illinois) | Newspapers and Periodicals | | 58,539 |
 | A List of Officers of the Illinois Regiment, and of Crockett's Regiment | Military Subjects | | 2,144 |
 | Hamilton County, Illinois Census of 1930 | Census and Voter Lists | | 12,842 |
 | Ancestors and Descendants of Daniel Gardner V and Mary (Hodges) Gardner Late of Champaign, Illinois. With Other Gardner | Social, Regional and General History | | 2,743 |
 | Ancestors of George and Richard Flower, co-founders of the English settlement, Albion, Illinois | Social, Regional and General History | | 2,546 |
 | The Eldred Family: Particularly the Descendants of William Eldred of Yarmouth, and More Particularly the Eldreds of Greene County, Illinois | Social, Regional and General History | | 4,461 |
 | Family Records of Nauvoo - 1845 and Before. Including Minutes of the First LDS Family Gathering, (Goddard / Howes Families) | Social, Regional and General History | | 3,586 |
 | Genealogy of Gaines Family: Joseph P. Gaines and Liza Bell Meteer, Married Feb. 19, 1829, Residence, Indian Point, IL | Social, Regional and General History | | 1,442 |
 | Genealogy of the Farmer, Cox and Hopkins Families of Fayette County, Illinois | Social, Regional and General History | | 5,119 |
 | Genealogy of the Vredenburgh Family in North America | Social, Regional and General History | | 779 |
 | Life of the Rt. Rev. Wm. Quarter, D. D., First Catholic Bishop of Chicago | Social, Regional and General History | | 488 |
 | Portrait and Biographical Album of DeKalb County, Illinois | Social, Regional and General History | | 54,003 |
 | Portrait and Biographical Album of Fulton County Illinois | Social, Regional and General History | | 39,637 |
 | Portrait and Biographical Album of Jo Daviess and Carroll Counties, Illinois | Social, Regional and General History | | 53,897 |
 | Quincy and Adams County History and Representative Men | Social, Regional and General History | | 115,917 |
 | Quincy in the Civil War: A View of the Great Conflict As Seen Through the Eyes of a Quincy Historian Carl A. Landrum | Social, Regional and General History | | 3,729 |
 | Rededication of Hobson Pioneer Marker, Pioneer Park, Du Page County, Illinois, 1952 | Social, Regional and General History | | 972 |
 | Reminiscences of Early Peoria, Including Indian Stories, | Social, Regional and General History | | 618 |
 | Rock River Annual Conference, Chicago Illinois: Memoirs of Ministers and ministers' Wives Deceased During Conference Year, 1922 - 1923 | Social, Regional and General History | | 496 |
 | Scrap Book: Amos Williams and Early Danville, Illinois | Social, Regional and General History | | 11,982 |
 | Sketches of Wethersfield Township, 1836 - 1925 | Social, Regional and General History | | 5,924 |
 | The True to Life Story of the Wiens Family: of the Mennonite Bible Mission, Now Grace Mennonite Church in Chicago | Social, Regional and General History | | 1,386 |
 | Wakefield Memorial Comprising An Historical, Genealogical and Biographical Register of the Name and Family of Wakefield | Social, Regional and General History | | 36,571 |
 | Wall's History of Jefferson County, Illinois | Social, Regional and General History | | 16,312 |
 | Wapella Centennial, 1854 - 1954 | Social, Regional and General History | | 3,299 |
 | William B. Ogden: And Early Days in Chicago, 1881 | Social, Regional and General History | | 888 |
 | William B. Ogden: And Early Days in Chicago, 1881, Part 2 | Social, Regional and General History | | 1,009 |
 | Biographical and Genealogical Record of La Salle County, Illinois | Miscellaneous Records and Reference | | 64,696 |
 | The Catholic Church in the Meeting of Two Frontiers: The Southern Illinois County, 1763 - 1793 | Miscellaneous Records and Reference | | 11,990 |
 | The History of Champaign and Logan Counties, From Their First Settlement | Miscellaneous Records and Reference | | 33,321 |
 | History of Iroquois County, Together With Historic Notes on the Northwest | Miscellaneous Records and Reference | | 97,147 |
 | History of Jefferson County, Illinois, 1810 - 1962 | Miscellaneous Records and Reference | | 58,221 |
 | The Location of the Chicago Portage Route of the Seventeenth Century | Miscellaneous Records and Reference | | 9,619 |
 | Ninety-second Illinois Volunteers | Miscellaneous Records and Reference | | 30,758 |
 | The Old Kaskaskia Records: An Address Read Before the Chicago Historical Society, 1906 | Miscellaneous Records and Reference | | 369 |
 | Pope County Notes | Miscellaneous Records and Reference | | 10,924 |
 | Portrait and Biographical Album of Champaign County, Illinois | Miscellaneous Records and Reference | | 82,533 |
 | Portrait and Biographical Album of Pike and Calhoun Counties, Illinois | Miscellaneous Records and Reference | | 63,339 |
 | Portrait and Biographical Album of Sangamon County, Illinois | Miscellaneous Records and Reference | | 65,200 |
 | Portrait and Biographical Album of Stephenson County, Illinois | Miscellaneous Records and Reference | | 60,054 |
 | Portrait and Biographical Album of Vermilion and Edgar Counties, Illinois | Miscellaneous Records and Reference | | 112,900 |
 | Portrait Biographical Album of Fulton County, Illinois | Miscellaneous Records and Reference | | 70,088 |
 | Searching the Recordds: Begins With the General Assembly of 1828 - 1829 | Miscellaneous Records and Reference | | 11,151 |
 | Witchcraft in Illinois | Miscellaneous Records and Reference | | 544 |
 | Woodford County History | Miscellaneous Records and Reference | | 23,253 |