Genealogical & Historical Societies 
PO Box 184 
Crystal Lake, Illinois 60039 
6422 Main Street 
PO Box 434 
Union, Illinois 60180 
1170 North Midlothian Road 
Mundelein, Illinois 6009 
Crystal Lake Historical Society
P.O. Box 1151
Crystal Lake, IL 60039-1151
Diana Kenney, President
McHenry County Genealogical Society
P.O. Box 184
Crystal Lake, IL 60039-0184
McHenry County Historical Society
6422 Main Street
P.O. Box 434
Union, Illinois 60180
Telephone: (815) 923-2267
McHenry County Historical Society Museum
6422 Main
Union, IL 60180
Telephone: (815) 923-2267 Mailing address:
P.O. Box 434
Union, IL 60180
McHenry Public Library
McHenry Public Library Dist.
809 N. Front Street
McHenry IL 60050

Telephone: (815) 385-0036
Fax: (815) 385-7085
Crystal Lake Public Library
126 Paddock Street
Crystal Lake, IL 60014
Telephone: (815) 459-1687
McHenry County Courthouse
2200 N Seminary Ave
Woodstock, IL 60098
Telephone: (815) 334-4000
Hours are: 8:00 a.m. to 4:30 p.m. Mon-Fri.
$12.00 certified copies of birth & marriage certificates
$14.00 certified copies of death certificates

When requesting a certificate, please include a copy of your drivers license (or other photo identification) and state your relationship to deceased. Only the individual of the record or parent of a minor can receive certificates of a living person.
Family History Centers (FHC)are almost the best resource when researching your family tree.

They are part of the Church of Jesus Christ of Latter Day Saints (Mormon Church) yet you need not be a member of the church to use the facilities. If you don't know where your local FHC is located, check this Illinois link. (This link will also provide you access to the "Family Search" web page. Just click the 'Home' button...)

National Archives - Great Lakes region
Maintains retired records from Federal agencies and courts in Illinois, Indiana, Michigan, Minnesota, Ohio, and Wisconsin.
7358 So Pulaski Road
Chicago, Illinois 60629-5898
Services for the Public:
8:00 A.M. to 4:15 P.M.
Monday through Friday.
Extended hours (microfilm research only):
Tuesdays until 8:30 P.M. 
Notice: Starting August 5, extended hours on only the first Tuesday, each month.
Closed weekends and Federal holidays.