President drives to office of Rear Adm. Dahlgren at Navy Yard; later Dahlgren returns to town with him. Extracts from Dahlgren Diary, John G. Nicolay Papers, Library of Congress, Washington, DC.

Cong. George S. Boutwell (Mass.) meets President on White House steps and goes upstairs with him to locate on map Gen. Grant's position in rear of Vicksburg, Miss., after crossing Black River today. George S. Boutwell, Reminiscences of Sixty Years in Public Affairs, 2 vols. (New York: McClure, Phillips, 1902), 2:307.

Lincoln declares Judge H. H. Leavitt's denial of motion for habeas corpus in Vallandigham case is equal to three victories in field. [Writ denied May 16, 1863.] Harper, Press, 243.