—Gen. William "Bull" Nelson is ordered by Gen. Buell to go to Kentucky to train and organize the new troops being sent there into a defense force in anticipation of Bragg’s invasion. Nelson is being given a few veteran troops to fill out the defensive force.
—Maj. Gen. J.E.B. Stuart prepares his brigades for a big raid behind Union lines to cut their supply route over the Rappahannock.
—Surgeon Alfred L. Castleman writes in his journal about the differences between North and South in attitudes toward commerce:
—As Gen. James Blunt and his army approach Lone Jack, Missouri, there is more fighting there as the Rebels attack the Federal skirmishers vigorously while the main Rebel force retreats southward.
—Capt. William L. Bolton, of the 51st Pennsylvania Infantry, records in his journal his own view of the wrangling and maneuvering between Pope and Lee in central Virginia: