Lincoln orders discharge of William ("Duff") Armstrong, whom he successfully defended in murder trial in 1858. Abraham Lincoln to Mrs. Hannah Armstrong, 18 September 1863, CW, 6:462.

Urges Gov. Johnson (Tenn.) to "do your utmost to get every man you can, black and white, under arms at the very earliest moment." Abraham Lincoln to Andrew Johnson, 18 September 1863, CW, 6:462-63.

Father of Sgt. Lewis H. Cox calls on Lincoln regarding son who was absent without leave and accepted pay as substitute. Order Concerning Lewis H. Cox, Alias John M. Dillon, 18 September 1863, CW, 6:463-64.

Interviews Mrs. Mary Duncan relative to cotton claimed by her husband. Abraham Lincoln to Salmon P. Chase, 25 September 1863, CW, 6:481.

Suggests to C. M. Smith that he name his son "for the General you fancy most." Abraham Lincoln to Clark M. Smith, 18 September 1863, CW, 6:464-65.

Meets with Senator Edgar Cowan of Pennsylvania. Daily National Republican (Washington, DC), 18 September 1863, 2d ed., 2:4.

[On the morning of September 19, 1863 Battle of Chickamauga begins about ten miles from Chattanooga.]