Barrington Historic Overlay District:

Chronicling America: Historic American Newspapers:

Digital Research Library of Illinois History:

Explore Chicago Collections:

Family Search:

Find A Grave:

Genealogy Online: Historical Cook County, Illinois Vital Records:

Illinois Digital Archives
Illinois Digital Archives (other historical photos and documents from the area)

Illinois State Archives:

Lake County IL Genealogical Society:

Library of Congress National Screening Room:

Linkpendium Genealogy and Family History:

National Archives:

The Newberry:

Tax Rolls for Cook County:

Tax Rolls for Kane County:

Tax Rolls for Lake County:

Tax Rolls for McHenry County: