McDonough County and Surrounding Areas:

Western Illinois Museum

McDonough County Historical Society

McDonough County History Consortium

Schuyler (IL) County Museum & Genealogical Center

Warren (IL) County Historical Society

Hancock (IL) County Historical Society

Fulton (IL) County Historical and Genealogical Society

Henderson (IL) County Genealogy and Family History Society

Western Illinois University Library Archives

Warsaw (IL) Public Library Digital Archives

Illinois State:

Illinois State Archives

Illinois Regional Archives Depository (IRAD) System

Illinois State Genealogical Society

Newberry Library

Abraham Lincoln Presidential Library

Illinois State Historical Society

Land Sales in Illinois

Illinois Digital Archives

Illinois Digital Newspaper Collection

 

National & International:

National Archives and Records Administration

Cyndi’s List

Daughters of the American Revolution

Family Search

Family History Research Wiki

Allen County Library Genealogy Center

World Cat Library System

Civil War Soldiers and Sailors Database

Chronicling America

Find A Grave

Historical Atlases and Maps of the United States

Ellis Island Passenger Search