Original Election Returns. Maryland State Archives, Annapolis.
George W. Archer Historical Scrapbooks. Historical Society of Harford County, Bel Air.
Baltimore Patriot and Mercantile Advertiser (Baltimore, MD). November 15, 1820.
The Halcyon and Tombeckbe Public Advertiser (Saint Stephens, AL). November 27, 1820.
Republican Star and General Advertiser (Easton, MD). November 28, 1820.
Willis, John T. Presidential Elections in Maryland. Mt. Airy, MD: Lomond Publications, 1984. 167.
These election records were released on 11 January 2012. Versions numbers are assigned by state. Alabama, Arkansas, Delaware, Florida, Georgia, Illinois, Indiana, Kentucky, Louisiana, Maine, Maryland, Michigan, Missouri, North Carolina, Ohio, Rhode Island, South Carolina, Tennessee and Virginia are complete and are in Version 1.0. All other states are in a Beta version. For more information go to the about page.