(en) Francis B. Heitman, Historical Register and Dictionary of the United States Army, from it's Organization, September 29, 1789, to March 2, 1903, Washington, Government Printed Office, (lire en ligne)
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(en) Donald R. Jermann, Fitz-John Porter, Scapegoat of Second Manassas : The Rise, Fall and Rise of the General Accused of Disobedience, McFarland, , 295 p. (ISBN978-0-7864-5255-2, lire en ligne).