Letter from Gideon Welles to Samuel Mercer, April 5, 1861
written by Gideon Welles, 1802-1878 (1861); edited by Edgar Thaddeus Welles; in Diary of Gideon Welles, Secretary of the Navy under Lincoln and Johnson, Vol. I (Boston, MA: Houghton, Mifflin and Company, 1911), 25-26
