(en-US) « George Custer », sur Biography (consulté le ).
books.google.com
(en) David Hardin, After the war : the lives and images of major Civil War figures after the shooting stopped (lire en ligne), p. 263.
(en) Christopher B. Bean, Too great a burden to bear : the struggle and failure of the Freedmen's Bureau in Texas, New York, Fordham University Press, , 309 p. (ISBN978-0-8232-6875-7, OCLC938856414, lire en ligne), p. 48
(en) Christopher B. Bean, Too great a burden to bear : the struggle and failure of the Freedmen's Bureau in Texas, New York, Fordham University Press, , 309 p. (ISBN978-0-8232-6875-7, OCLC938856414, lire en ligne), p. 48