Dr. John Swinburne of New York and assistant, J. T. Gillett, call on President and volunteer services to Army of Potomac. Abraham Lincoln to Horatio Seymour, 12 May 1863, CW, 6:211.

President receives from Gen. Hooker's staff confirmation of Gen. "Stonewall" Jackson's death on May 10, 1863. Washington Chronicle, 13 May 1863.