"Trent Incident". H42day.100megsfree5.com. Archived from the original on April 2, 2012. Retrieved February 5, 2014.
archive.org
Warren, p. 133; see also Edward Robert Cameron, Memoirs of Ralph Vansittart (Toronto, 1902), pp. 52–54, at archive.org
James Garfield Randall (1946). Lincoln the President: Springfield to Gettysburg. Da Capo Press, Incorporated. p. 50. quoted in Kevin Peraino, Lincoln in the World: The Making of a Statesman and the Dawn of American Power (2013), pp. 160–61.