Links Offsite

See also links to these research aids: classes, conferences, webinars, and professional services

Government offices holding St. Clair records (Courthouse, IRAD, ISA, National, State)
St. Clair County Courthouse
10 Public Square
Belleville, IL 62220
(618) 277-6600
Many records or indexes in these offices are already part of the SCCGS holdings at the Belleville Public Library through the efforts of SCCGS, its volunteers, and donors. The Illinois State Archives (link below) has several indexes online.
Illinois Regional Archives Depository (IRAD)
c/o – Special Collections – Morris Library – 6632
Southern Illinois University
Carbondale, IL 62901-6632
(618) 453-3040
To top

The ISA oversees IRAD and the websites look similar.

  • IRAD is the official depository for St. Clair documents and records released for public use and research.
  • Free research by interns in historical disciplines. Copies are billed at cost when mailed to you.
  • At IRAD’s homepage, scroll to the bottom for links to Local Governmental Records Database for St. Clair records available (some births, great marriage licenses and certificates, deed indexes, probate case files, jail records). Read links there to understand what data each record may hold, IRAD contact information, and research policy.

St Clair County online resources at IRAD at SIU-Carbondale

Illinois State Archives (ISA)
Norton Building
Springfield, IL 62756
(217) 782-4866
To top

Statewide databases: marriages (1763–1905 for St. Clair),** deaths after 1915,** public domain land sales, military; and pre-statehood St. Clair County records and the Perrin Collection.

St Clair County online resources at SIU-Carbondale (IRAD)

** St. Clair County marriage indexes (1906–1950), and deaths (1878–1916) were published in the SCCGS Quarterly 

are preserved at the ISA.

Abraham Lincoln Presidential Library 
112 North Sixth Street,
Springfield, IL 62701
Telephone for
Reference Desk: 217.524.6358.
Manuscripts: 217.558.8855.
Newspaper microfilm interlibrary loan. 217.785.7941.
Illinois State Library 
300 South Second St.
Springfield, IL 62701
(217) 782-7596
Great source for maps on interlibrary loan.
NARA National Archives Records Administration See their Genealogy Page for often used and requested records.

BLM Bureau of Land Management


Online Public Domain land purchase database for several states after 1820 (but for Illinois also includes Military Tract purchases from 1817-forward). Dates reflect patent issued date. The Illinois State Archives’ database is more comprehensive.
To top  
Missouri History Museum
P.O. Box 11940
St. Louis MO 63112-0040
(314) 746-4510
Search MIssouri History Museum’s Genealogy and Local History Index.
Example: About 1,000 Illinois soldiers died in St. Louis military hospitals and camps 13 October 1861 to 22 May 1865.

To top

Libraries and historical societies in St. Clair County

Belleville Public Library
121 East Washington St.,
Belleville, IL 62220

Belleville Historical Society
P.O. Box 23682
Belleville, IL 62223.   Great Belleville Photos

O’Fallon Historical Society
101 West State, O’Fallon, IL 62269.
Custodians of the Progress Obituary Index 1898 – present.

O’Fallon Public Library
120 Civic Plaza, O’Fallon, IL 62269
(618) 632-3783

St. Clair County Historical Society 701 E. Washington St., Belleville, IL 62220
(618) 234-0600
New Athens District Library
201 N. Van Buren, New Athens, IL 62264
(618) 475-3255
Cahokia Public Library 140 Cahokia Park Dr., Cahokia, IL 62206 (618) 332-1491 Caseyville Public Library
419 S. Second St., Caseyville, IL 62232
(618) 345-5848
Collinsville Public Library
408 W. Main, Collinsville, IL 62234
(618) 344-1112
E. St. Louis Public Library
closed 2017
Fairview Heights Public Library
10017 Bunkum Rd.,
Fairview Heights, IL 62208
(618) 489-2070

Freeburg Public Library
407 S. Belleville St., Freeburg, IL 62243
(618) 539-5454


Marissa Historical and Genealogical Society
P O Box 245
212 North Main Street
Marissa, IL 62257-0245

Mascoutah Heritage Museum
306 West Main, Mascoutah, IL 62258
(618) 566-9774

Mascoutah Public Library
3 W. Church St., Mascoutah, IL 62258
(618) 566-2562

Millstadt Public Library
115 W. Laurel
Millstadt, IL 62260 
Millstadt Historical Society, c/o Village Hall,
111 W. Laurel St., Millstadt, Illinois 62260
(618) 476-1514.

To top

Regional societies and FamilySearch
 ISGS Illinois State Genealogical Society,
P.O. Box 10195, Springfield, IL 62791-0195.

**The Illinois State Genealogical Society offers copy service for death certificates at a reduced fee.

Free indexes and digital images on [Direct link to Illinois, Diocese of Belleville” church registers – use this with the indexes and abstracts on SCCGS’s Church records webpage].  Also see the FamilySearch Catalog for titles available.
StLGS St. Louis Genealogical Society Just across the Mississippi River. Many St. Clair Countians lived or worked in St. Louis for a time. Illinois GenWeb all counties
Illinois State Historical Society (ISHS) members have access to all Journal volumes published since 1909. Early volumes may be viewed free online. Genealogy Trails all counties

To top



St. Clair County Newspapers, many indexed at the Belleville Public Library


St. Louis Photographers database

Query Links

St. Clair County families. Let’s collaborate!

St. Louis

St. Louis Obit Index
Some St. Clair County people died in St. Louis.

St. Marcus United Church of Christ, St. Louis, Missouri Marriages 1847 – 1865 (some St. Clair people in this resource were born in or resided in Illinois)

St. Clair County – Other

The Internet Archive for free St Clair County historical reference books. Try these terms in their search box: Illinois AND st clair AND [a topic, e.g., census, Belleville, or coal]

Evangelical and Reformed/ United Church of Christ repository for some St. Clair church registers.


Association for Gravestone Studies
– See FAQs which include Do’s and Don’ts, Cleaning, Photographing, Tools for Resetting Stones.

Political Graveyards in USA. Links include biographies and burial places of politicians nationwide.

To top

Find this site useful?

You do *not* need a PayPal account to donate on PayPal's secure site.


St. Clair County Genealogical Society, PO Box 431, Belleville, IL 62222-0431.
E-mail:  Privacy policy and Use Agreement.
©1997, 2018, the St. Clair County Genealogical Society. All rights reserved.
Information may be linked to but not copied. Authorized by SCCGS Board of Directors. Contact Us.