Chicago: 
								Albert Bigelow Paine, "Volume I, Part 1: 1835-1866," Mark Twain, a Biography, ed. Hawthorne, Julian, 1846-1934 in  Mark Twain, a Biography (New York: Sir Isaac Pitman and Sons, 1894), Original Sources, accessed November 4, 2025, http://www.originalsources.com/Document.aspx?DocID=84SR4N1CAIV6275.
								
							
							
								MLA: 
								Paine, Albert Bigelow. "Volume I, Part 1: 1835-1866." Mark Twain, a Biography, edited by Hawthorne, Julian, 1846-1934, in  Mark Twain, a Biography, Vol. 22,  New York, Sir Isaac Pitman and Sons, 1894, Original Sources. 4 Nov. 2025. http://www.originalsources.com/Document.aspx?DocID=84SR4N1CAIV6275.
								
							
							
								Harvard: 
								Paine, AB, 'Volume I, Part 1: 1835-1866' in Mark Twain, a Biography, ed. . cited in  1894, Mark Twain, a Biography, Sir Isaac Pitman and Sons, New York. Original Sources, retrieved 4 November 2025, from http://www.originalsources.com/Document.aspx?DocID=84SR4N1CAIV6275.