HEADQUARTERS CAVALRY CORPS, Union Mills,
June 16, 1863-5. 15 a. m.

Major-General REYNOLDS,

Commanding Right Wing, Centreville:

There is but one ford that can be used across Bull Run. We need all the fords and some bridges in case we make a stand here. Shall place my troops west of the Run. No sigh of enemy in the direction of Thoroughfare Gap.

A. PLEASONTON,

Brigadier-General.

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CENTREVILLE, June 16, 1863-7. 22 a. m.

Brigadier-General PLEASONTON,

Union Mills:

Have you anything from Warrenton and the Junction this morning? There are rations at Manassas. Have your trains filled up with supplies. You must keep Meade's front toward the Rappahannock, and Warrenton picketed. Your telegram of 5. 15 a. m. just received. Who is now out in Meade's front? The train is at Manassas for the ammunition at Cedar Run, and Meade will send there if Buford is there yet. Let me know at once.

JOHN F. REYNOLDS,

Major-General.

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CENTREVILLE, VA.,

June 16, 1863-7. 30 a. m.

Major-General MEADE,

Manassas:

Have trains filled up with subsistence. Have telegraphed Pleasonton to keep your front well picketed toward the Rappahannock and Warrenton. Please send Birney word that rations are at Manassas, and to fill up his trains and have them ready for any movement. The trains to Cedar Run can go if you think proper to send them.

JOHN F. REYNOLDS,

Major-General, Commanding.

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JUNE 16, 1863-8 a. m.

General STAHEL:

Will you please inform General Hooker where your troops are, where your pickets are, covering what approaches, and to what, and from what points and what connection?

DANL. BUTTERFIELD,

Major-General, and Chief of Staff.

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FAIRFAX COURT-HOUSE.

June 16, 1863-9 a. m.

Major-General BUTTERFIELD,

Chief of Staff, Army of the Potomac:

I have one brigade of my command on picket from Chantilly to the Potomac, striking the Potomac at the mouth of Difficult Run.