Ancestory.com

Cyndi's List

The David Library of the American Revolution

Family Search

Family Tree Maker

Genealogy: Beginner's Resource Guide at BackgroundChecks.org

Genealogical Society of Pennsylvania

Lancaster County Historical Society

New England Historic Genealogical Society

Pennsylvania Historical and Museum Commission

Pennsylvania State Archives, Archives Records Information Access System (ARIAS)

Restoration Photo

Society of the Cincinnati Library at Anderson House

USHistory.Org