President informs Gen. McClellan of evacuation of Fredericksburg, Va., and position of Gen. McDowell's forces. Lincoln to McClellan, 21 April 1862, George B. McClellan Papers, Library of Congress, Washington, DC; Abraham Lincoln to George B. McClellan, 21 April 1862, CW, 5:195.

Grants interview to Mrs. Margarethe M. Schurz. CW, 8:489.