Population Schedules of the Third Census of the United States, 1810, Roll 16: Maryland 

 - Washington, DC  National Archives and Records Service  1960 
<br/><br/> Prince George's, Queen Anne's, St. Mary's, Somerset, Washington, Worcester Counties 
<br/><br/><label>Subjects--Facted Index Terms: </label><br/>1. Census<br/>2. Maryland, Census