Danford, George H. The Rebel Earl, unpublished dissertation. Columbia University, 1955.
Ditmas, Charles A., The Life and Service of Major-General William Alexander also called Lord Sterling. Brooklyn, NY, 1929.
Duer, William Alexander. William Alexander, Earl of Sterling. Major General in the Army of the United States During the Revolution. First Edition. New York: Wiley & Putnam, 1847.
Nelson, Paul David. William Alexander, Lord Stirling. University, Ala.: University of Alabama Press, 2004.
Schumacher, Ludwig, Major-General William Alexander. New York, 1847.
Valentine, Alan, Lord Sterling. New York, 1969
Memoirs and Papers
William Alexander papers, Manuscripts and Archives Division, The New York Public Library.