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(en) Tamara Plakins Thornton, Nathaniel Bowditch and the power of numbers : how a nineteenth-century man of business, science, and the sea changed American life, , 416 p. (ISBN978-1-4696-2694-9, OCLC939597862, lire en ligne)
(en) Bird Observer (Organization) American Birding Association., A birder's guide to eastern Massachusetts, American Birding Association, (ISBN978-1-878788-08-5, OCLC31972574, lire en ligne)
(en) Thomas E. Spencer, Where they're buried : a directory containing more than twenty thousand names of notable persons buried in American cemeteries, with listings of many prominent people who were cremated, Clearfield Co, , 627 p. (ISBN978-0-8063-4823-0, OCLC40245482, lire en ligne)
(en) Harriet A. Jacobs, Incidents in the life of a slave girl : written by herself, Belknap Press of Harvard University Press, , 433 p. (ISBN978-0-674-03583-6, OCLC318875574, lire en ligne)
(en) Koed, Biographical directory of the United States Congress, 1774-2005 : the Continental Congress, September 5, 1774, to October 21, 1788, and the Congress of the United States, from the First through the One Hundred Eighth Congresses, March 4, 1789, to January 3, 2005, inclusive., United States. Congress. Joint Committee on Printing., , 2218 p. (ISBN978-0-16-073176-1, OCLC63049058, lire en ligne)