"John Boon, Esq. received 275 votes in this county, for Elector of President and Vice President, and will vote for Monroe and Tompkins." Republican Star and General Advertiser (Easton, MD). November 28, 1820.
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.
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