President, members of family, and Commander Dahlgren visit Mount Vernon by steamer Mount Washington. Lincoln remains in boat. Extracts from Dahlgren Diary, John G. Nicolay Papers, Library of Congress, Washington, DC; N.Y. Herald, 3 April 1862; Evening Star (Washington, DC), 2 April 1862, 2d ed., 2:1; National Republican (Washington, DC), 3 April 1862, 3:2.

Asst. Sec. Fox introduces to President, John Ericsson and A. C. Stimers, engineers who designed and helped build USS Monitor. Fox, Diary, Gist-Blair Family Papers, Library of Congress, Washington, DC.

Attorney General Edward Bates calls to see Lincoln on personal matters. Bates, Diary.

In evening Senator Orville H. Browning (Ill.) talks to President and Secretary of War Edwin M. Stanton about Gen. McClellan. Browning, Diary.

Lincoln writes to Michael Crock of Philadelphia: "Allow me to thank you in behalf of my little son for your present of White Rabbits. He is very much pleased with them." Abraham Lincoln to Michael Crock, 2 April 1862, CW, 5:177.