MacDougall, William L. American Revolutionary: A Biography of General Alexander McDougall. Contributions in American History, no. 57. Westport, Conn: Greenwood Press, 1977.
Memoirs and Papers
Guide to Alexander McDougall papers in the Biographical Directory of the US Congress, Alexander McDougall, 1731-1786, Guide to Research Collections which include manuscripts at the New York Historical Society, Historical Society of Pennsylvania, Huntington Library, The Library of Congress, The Morgan Library, The New York State Library, The Rosenbach Museum and Library and the Yale University Library.