Phillips, Stephen C. Address on the annexation of Texas, and the aspect of slavery in the United States, in connection therewith: delivered in Boston November 14 and 18, 1845, book, January 1, 1845; (https://texashistory.unt.edu/ark:/67531/metapth2361/m1/46/: accessed August 15, 2018), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .