Houston, David F. Eight Years with Wilson’s Cabinet, 1913 to 1920. New York: Doubleday, Page, 1926.
James, Adm. William. The Code Breakers of Room 40. New York: St. Martin’s Press, 1956.
James, William. “Address of the President Before the Society for Psychical Research.” Science, n.s., 3, no. 77 (June 19, 1896): 881–88.
Kahn, David. The Codebreakers: The Story of Secret Writing. New York: Macmillan, 1967.
Kalafus, Jim, Michael Poirier, Cliff Barry, and Peter Kelly. Lest We Forget: The Lusitania. Published online, May 7, 2013. www.?encyclopedia-titanica.?org/?lest-we-forget-the-lusitania.?html.
Katz, Sandra L. Dearest of Geniuses: A Life of Theodate Pope. Windsor, CT: Tide-Mark Press, 2003.
Keegan, John. The First World War. New York: Vintage Books, 1998.
Kennedy, Paul M. The War Plans of the Great Powers, 1880–1914. London: George Allen and Unwin, 1979.
Kilgour, Raymond L. Estes and Lauriat: A History, 1872–1898. Ann Arbor: University of Michigan Press, 1957.
Knight, Denise D. “ ‘All the Facts of the Case’: Gilman’s Lost Letter to Dr. S. Weir Mitchell.” American Literary Realism 37, no. 3 (Spring 2005): 259–77.
Koenig, Paul. Voyage of the Deutschland. New York: Hearst’s International Library, 1917.
Koerver, Hans Joachim. German Submarine Warfare 1914–1918 in the Eyes of British Intelligence. Steinbach, Austria: LIS Reinisch, 2012. http://germannav?alwar?fare.?info/?01gnw/?subm/?jpg/?subm.?pdf.
Lambert, Nicholas. The Submarine Service, 1900–1918. London: Ashgate, 2001.
Lamont, Peter. “Spiritualism and a Mid-Victorian Crisis of Evidence.” Historical Journal 47, no. 4 (2004): 897–920.
Lane, Anne Wintermute, and Louise Herrick Wall, eds. The Letters of Franklin K. Lane. Boston: Houghton Mifflin, 1922.
Larson, Erik. Thunderstruck. New York: Crown, 2006.
Lauriat, Charles E., Jr. The Lusitania’s Last Voyage. Boston: Houghton Mifflin, 1915.
Lawrence, Jack. When the Ships Came In. New York: Farrar and Rinehart, 1940.
Levin, Phyllis Lee. Edith and Woodrow. New York: Scribner, 2001.
Link, Arthur S. “Dr. Grayson’s Predicament.” Proceedings of the American Philosophical Society 138, no. 4 (Dec. 1994): 487–94.
———. Wilson: Campaigns for Progressivism and Peace, 1916–1917. Princeton, NJ: Princeton University Press, 1965.
———. Wilson: Confusions and Crises, 1915–1916. Princeton, NJ: Princeton University Press, 1964.
———. Wilson: The Struggle for Neutrality, 1914–1915. Princeton, NJ: Princeton University Press, 1960.
Lord, Walter. A Night to Remember. New York: Henry Holt, 1955.
Mackworth, Margaret. This Was My World. London: Macmillan, 1933.
Marcosson, Isaac F., and Danniel Frohman. Charles Frohman: Manager and Man. New York: Harper and Brothers, 1916.
Marder, Arthur J. Fear God and Dread Nought: The Correspondence of Admiral of the Fleet Lord Fisher of Kilverstone. Vols. 2 and 3. London: Jonathan Cape, 1959.
———. From the Dreadnought to Scapa Flow: The Royal Navy in the Fisher Era, 1904–1919. Vol. 2. London: Oxford University Press, 1965.
Mellown, Muriel. “Lady Rhondda and the Changing Faces of British Feminism.” Frontiers 9, no. 2 (1987): 7–13.
Mersey, Lord (John Charles Bingham). Report on the Loss of the “Falaba.” London: H. M. Stationery Office, 1915.
Messimer, Dwight R. The Merchant U-Boat. Annapolis, MD: Naval Institute Press, 1988.
Mitchell, S. Weir. Doctor and Patient. Philadelphia: J. B. Lippincott, 1888.
———. Fat and Blood: And How to Make Them. Philadelphia: J. B. Lippincott, 1877.
———. Wear and Tear or Hints for the Overworked. Philadelphia: J. B. Lippincott, 1897.
Morton, Leslie. The Long Wake. London: Routledge and Kegan Paul, 1968.
Neureuther, Karl, and Claus Bergen, eds. U-Boat Stories. Uckfield, East Sussex, UK: Naval and Military Press, 2005.
Niem?ller, Martin. From U-Boat to Pulpit. Chicago: Willett, Clark, 1937.
Paine, Judith. “Avon Old Farms School: The Architecture of Theodate Pope Riddle.” Perspecta 18 (1982): 42–48.
Preston, Diana. Lusitania: An Epic Tragedy. New York: Walker, 2002.
Ramsay, David. “Blinker” Hall: Spymaster. Gloucestershire, UK: History Press, 2009.
———. Lusitania: Saga and Myth. New York: W. W. Norton, 2002.
Rintelen, Franz von. The Dark Invader: Wartime Reminiscences of a German Naval Officer. New York: Penguin, 1939.
Ritter, Gerhard. The Schlieffen Plan. Translated by Andrew and Eva Wilson. New York: Frederick A. Praeger, 1958.
R?ssler, Eberhard. The U-Boat. Translated by Harold Erenberg. London: Arms and Armour Press, 1981.
Rossano, Geoffrey L. Stalking the U-Boat: U.S. Naval Aviation in Europe During World War I. Gainesville: University Press of Florida, 2010.
Sargent, George H. Lauriat’s, 1872–1922. Boston: privately printed, 1922.
Schachtman, Tom. Edith and Woodrow. New York: G. P. Putnam’s Sons, 1981.
Scheer, Reinhard. Germany’s High Sea Fleet in the World War. 1919. Reprint, New York: Peter Smith, 1934.