... Lee must have had some knowledge of Hooker's movements prior to the news brought in by the scout on the night of the 28th. For in his letter to General Ewell, dated June 28, 1863, 7:30 A. M., from Chambersburg , he says, I wrote you last night stating that General Hooker was reported to have crossed the Potomac, and is advancing by way of Middletown, &c. He adds, That in that letter he had directed him ...