Barrington Historic Overlay District:

Building Codes for the Barrington Area
Building Codes

Chronicling America: Historic American Newspapers:

Digital Research Library of Illinois History:

DNA Test Kit Comparison Chart
DNA Test Kits

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:

Illinois School Report Card - Barrington:
Illinois School Report Card - Barrington

Lake County IL Genealogical Society:

Library of Congress National Screening Room:

Linkpendium Genealogy and Family History:

National Archives:

The Newberry:

Overseas Genealogy: One Site at a Time
Overseas Genealogy

Tax Rolls for Cook County:

Tax Rolls for Kane County:

Tax Rolls for Lake County:

Tax Rolls for McHenry County: