Gales, Joseph, 1761-1841. Register of Debates in Congress, Comprising the Leading Debates and Incidents of the First Session of the Twentieth Congress, book, 1828; (https://digital.library.unt.edu/ark:/67531/metadc30740/m1/1/: accessed August 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .