Lincoln receives notice from Gen. Rosecrans of conspiracy by Order of American Knights, reputedly led by former Cong. Vallandigham (Ohio) and by C. Hunt, to overthrow government. Documents should be transmitted by courier. Rosecrans to Lincoln, 2 June 1864, Abraham Lincoln Papers, Library of Congress, Washington, DC.

President Lincoln issues an order paroling Charles H. Jonas, "now a prisoner of war at Johnson's Island," located near Sandusky, Ohio. Captain Jonas is with the Confederate Army's 12th Regiment Arkansas Infantry. Lincoln grants Jonas "a parol of three weeks" so that he may "visit his dying father, Abram Jonas, at Quincy, Ill." Abra[ha]m Jonas became Quincy's Postmaster "upon...[Lincoln's] election," and, over the years, corresponded with Lincoln, who had once referred to the elder Jonas as "one of my most valued friends." Browning, Diary; Order for Parole of Charles H. Jonas, 2 June 1864, CW, 7:373; Charles M. Segal, "New Light on Lincoln's Parole of Charles H. Jonas," American Jewish Historical Society Vol. 42, No. 4 (June 1953): 407; Quincy Daily Whig Republican (IL), 14 June 1864, 3:3; Abraham Lincoln to Abraham Jonas, 4 February 1860, CW, 3:516.

A. K. McClure, delegate-at-large from Pennsylvania to National Union Party Convention, calls on Lincoln. Alexander K. McClure, Lincoln as a Politician (Putnam, CT: privately printed, 1916), 18.

Mrs. Lincoln attends opera, accompanied by Postmaster Gen. Blair and his daughter. Fox, Diary, Gist-Blair Family Papers, Library of Congress, Washington, DC.