Illinois Regional Archives Depository (IRAD)
The Illinois State Archives administers the Illinois Regional Archives Depository (IRAD) system to manage the archival records of local governments. One depository is devoted solely to Cook County, while six other regional depositories each comprise from 14 to 23 contiguous counties. The Southern Illinois University Carbondale (SIU) facility maintains records from the following 23 counties:
- St. Clair
Visiting IRAD at SIU
You are welcome to visit the SIU IRAD facility to pursue your research in person. IRAD staff will retrieve materials, assist you in using the microfilm readers, and make photocopies.
The facility is located on the western edge of the Carbondale campus, at 1835 University Press Drive. Click here for directions. SIU IRAD is open Monday through Friday, 9 to 4, except for state holidays. However, because the facility is staffed by graduate interns, class schedules occasionally conflict with these hours. We recommend that you call 618/453-3040 to plan your visit in advance.
What Records are Held for Each County at SIU?
For a list of holdings by county, visit the IRAD website, click on Databases, and choose Local Governmental Records Holdings. A search by county name will yield a list of all records, complete with date ranges and full record title.
How Do I Submit a Research Request?
SIU's IRAD records are not accessible online. The facility is staffed by graduate interns who will be happy to answer your research questions. To reach IRAD-SIU by phone, please call 618/453-3040. To mail your research request, address it to:
IRAD-c/o Records Management
Morris Library, Mail Code 6808
Southern Illinois University
1835 University Press Drive
Carbondale, IL 62901-6808
- Full name of the person you are researching.
- Approximate year this person is expected to appear in a record.
- Name of the county.
- Record title or type to search (birth, probate, marriage, etc.).
Please limit your requests to two (2) names at a time and wait for a response before you submit additional requests.
The research services of the IRAD system are provided at no charge. If you request information by mail, you do not need to include a self-addressed, stamped envelope. Unless you set an expenditure limit in advance, we will request authorization for billings that exceed $5.00. Photocopy charges are $0.25 per page with a $1.00 minimum charge (subject to change). You will be billed when we send you the copies.