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 of your rear, you can move with the other three into Maryland and take position on General Ewell's right, place yourself in communication with him, guard his flank, keep him informed of the enemy's movements and collect all the supplies you can for the use of the army. One column of General Ewell's army will probably move towards the Susquehanna by the Emmittsburg route, another by Chambersburg. Accounts from last night state there was no enemy west of Frederick. A cavalry force (about 100), guarded the Monocracy bridge, whicji was barricaded. You will of course take charge of Jenkins' brigade and give necessary instructions."

On the same day (June 22), General Lee wrote to General Ewell, as follows: "I directed General Stuart, should the enemy have so far retired from his front as to permit of the departure of a portion of the cavalry, to march with three brigades across the Potomac and place himself on your right and in communication with you, keep you advised of the movements of the enemy and assist in collecting supplies for the army. I have not heard from him since."

Col. Mosby says (page 88), that this letter "settles a question that has been raised whether Stuart's instructions required him to remain in Virginia and march north on the right flank of the two corps that were with Lee, or to move into Pennsylvania and join Ewell on the Susquehanna." It merely advised General Ewell, who had been authorized to move towards the Susquehanna, that Stuart would be on his right and in communication with him during his march, and not after he reached the Susquehanna.

When on June 22nd, Ewell was authorized to move towards the Susquehanna he was in Maryland, "opposite Shepherds-town," and Anderson's division of Hill's corps was to be at Shepherdstown the next day—which would relieve Early 's division and enable Ewell to move his whole corps into Pennsylvania, with Jenkins' cavalry in advance and Imboden on his left. If Hooker was moving northward, Stuart was to cross the Potomac with three brigades of his cavalry, "take position on Ewell's right, place himself in communication with him, guard his flanks," etc., and he was also to "take charge of Jenkins'