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Illinois Genealogy Trails

Welcome to McHenry County
History and Genealogy

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Formed in 1836 out of Cook and LaSalle counties, McHenry County is the sixth largest county, in terms of population, in the state of Illinois. It was named for Major William McHenry, an Indian fighter who died in Vandalia in 1835.
The County originally stretched all the way east to Lake Michigan, with the county seat centrally in McHenry, but in 1839, the eastern townships of the county were carved out to form Lake County
Its county seat is Woodstock, Illinois

Township Map

Online Data





Church Histories/Records

County History

Court Records

Death Records

Family Bibles






 Town and Township Histories

Wills/Legal Records 

Old Settlers Association

Research Aids

1885 History Book

Website Updates:
Apr 2013: obit for KIES
Jan 2013: bios for HILLS, GRIFFING, PORTER, EHLERT; obit for CORCORAN
Dec 2012: Membership Records of
St. Johns Lutheran Church; St. Paul's Lutheran Church
June 2012: obit for WINN
Oct 2011:
Post 169 G.A.R. Veterans Deaths 1879 - 1947
Apr 2011: TOOKER biography, READEL obit
Mar 2011: Marriage announcement for KING-CRAWFORD
Jan 2011:
Deaths listed in Chapter 10 of the 1885 History of McHenry County; Biographies Index in 1885 history
Dec 2010: Veterans Biographies from 1877 History
Sept 2010: AUSTIN bio
Aug 2010: SEARS bio
Feb 2010: ODENTHAL family obituary, HIGGINS obits
Oct 2009: COLLINS obituary
Sep 2009: RICE family biography
Aug 2009: St. Johns UCC Church Records, Zion Lutheran Confirmation Records
May 2009: 1877 County Directory COMPLETED!!!!
Apr 2009: Added to the Town and township histories; New biographies for SILL, SILLIMAN, SINCERBOX, SLAVIN, SLATER; 1877 Directory for
Chemung Township; Coral Township; Dorr twp

Surrounding Counties
Walworth County, Wisconsin - north
Kenosha County, Wisconsin - northeast
Lake County - east
Cook County - southeast
Kane County - south
DeKalb County - southwest
Boone County - west

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Many thanks to long-time host Anne Kunzen for all her hard work on this site!

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