President and several senators examine hammock tent pitched in front of Capitol. Philadelphia News, 28 April 1862.

During night session of cabinet Sec. Stanton and Gen. Wadsworth accuse Gen. McClellan of failing to protect Washington. Thomas Harry Williams, Lincoln and the Radicals (Madison: University of Wisconsin Press, 1941), 128.

President Lincoln writes to eleven-year-old Luella P. "Lulu" Waldron, who is the daughter of Provost Marshal George P. Waldron, of the Dakota Territory. Lulu Waldron sent Lincoln some shirt "studs" made from a clay-based stone. He writes, "My Dear Young Friend Allow me to express to you my very sincere thanks for your kindness in sending me those elegant studs of Pipestone." Abraham Lincoln to Lulu Waldron, 27 April 1862, CW, 5:200.