Unknown to Lorenzo Thomas, April 1, 1862

Brig. Gen. LORENZO THOMAS, Adjutant-General U. 8. Army : ;

GENERAL : I have to request that you will lay the following communication before the honorable Secretary of War.

The approximate numbers and positions of the troops left near and ‘in rear of the Potomac are about as follows:

General Dix has, after guarding the railroads under his charge, sufficient troops to give him 5,000 for the defense of Baltimore and 1,988 available for the Eastern Shore, Annapolis, &. Fort Delaware is very well garrisoned by about 400 men.

The garrisons of the forts around Washington amount to 10,600 men; other disposable troops now with General Wadsworth being about 11,400 men.

The troops employed in guarding the various railways in Maryland amount to some 3,359 men. These it is designed to relieve, being old regiments, by dismounted cavalry, and to send forward to Manassas.

General Aererombie occupies Warrenton with a force which, in cluding Colonel Geary at White Plains and the cavalry to be at his disposal, will amount to some 7,780 men, with twelve pieces of artillery. I have the honor to request that all the troops organized for service in Pennsylvania and New York and in any of the Eastern States may be ordered to Washington. I learn from Governor Curtin that there are some 3,500 men now ready in Pennsylvania. This force I should be glad to have sent at once to Manassas. Four thousand men from General Wadsworth I desire to be ordered to Manassas. These troops, with the railroad guards above alluded to, will make up a force under the command of General Abercrombie to something like 18,639 men.

It is my design to push General Blenker’s division from Warrenton upon Strasburg. He should remain at Strasburg, too, long enough to allow matters to assume a definite form in that region before proceeding to his ultimate destination.

The troops in the valley of the Shenandoah will thus, including Blenker’s division, 10,028 strong, with twenty-four pieces of artillery ; Banks’ Fifth Corps, which embraces the command of General Shields, 19,687 strong, with forty-one guns; some 3,652 disposable cavalry and the railroad guards, about 2,100 men, amount to about 35,467 men.

It is designed to relieve General Hooker by some regiment, say 850 men, leaving, with some 500 cavalry, 1,350 men on the Lower Potomac.

To recapitulate :

, Men ACAVVASTENtON tNerOiSsbOiDO Sonos siewc o2\es nee cieysids oes Se cise wlelee\s be oscbesic nals 7,780 PACERS id RONNA BEN Pete ae amines Sao alos soeele se pist oe = siscisascaccestis oseey aciso 10, 859 Inthe valley of the Shenandoah… 2.0.2… 2.5 scenes ce toss ence ccdccecccnse! 00,467 Onithedso wer EObomaso socsc: osc ctnse ss ocissles scles ealocs jeteacssclecceaae es elf OOU

LEN CTS es AS oe PCS SOEAHe 55 DOE CORO BO0 GCE OSS GO5G LACT AG te aol Une iG

There would thus be left for the garrisons and the front of Washington under General Wadsworth some 18,000 men, exclusive of the batteries under instruction.

The troops organizing or ready for service in New York, I learn, will probably number more than 4,000. These should be assembled at Washington, subject to disposition where their services may be most needed.

very respectfully, your obedient servant