September 18, 1861
- Having received supplies, including ammunition, the Confederates launched a major assault on Lexington. The Union defenders were cut off from their fresh water supplies by Confederate snipers.
A Chronological History of the Civil War in America1
- Members (18), Speaker, and clerk of the Maryland Legislature arrested at Frederick and sent to Fort McHenry.
- Banks of New Orleans suspended specie payments.
- Skirmish near Columbus and Barboursville, Kentucky.
- A Chronological History of the Civil War in America by Richard Swainson Fisher, New York, Johnson and Ward, 1863