John H. Barlett, editor, The Hampton Roads Conference, hal. 6. John H. Barlett, editor, The Hampton Roads Conference, hlm. 6-7; John H. Barlett, editor, The Hampton Roads Conference, hal. 8-9; John H. Barlett, editor, The Hampton Roads Conference, hal. 7. John P. Usher, Reminiscences of Abraham Lincoln, hlm. 97-98. Gideon Welles, Buku Harian Gideon Welles, Volume II, hlm. 237 (6 Februari 1865). John H. Barlett, editor, The Hampton Roads Conference, hlm. 14-15.