Head Quarters, Army of the Tenn
In Field, Shiloh, May 2nd 1862.
GEN. J. A. MCCLERNAND,
COMMDG 4TH ARMY CORPS
A note just received from Gen Halleck says that the enemy are moving towards Purdy to operate on our flank. 1
Have all the approaches by way of Owl Creek well watched, and tomorrow early, or tonight if practicable send a strong reconnoitering party towards Purdy. Cavalry alone will answer for this reconnoisance. I will direct Gen Wallace to use extra vigilance on the two roads leading from here.
Your Obt. Servant.
U. S. GRANT.
Copies, DLC-USG, V, 1, 2, 3, 86; DNA, RG 393, USG Letters Sent. O. R., I, x, part 2, 157. On May 3, 1862, Maj. Gen. John A. McClernand wrote to USG. "Pursuant to your order, I dispatched all the available Cavalry of my command, this morning to reconnoitre towards Purdy, and to report the result I will in due time, advise you of the result" Copies, DNA, RG 393, Dept. of the Tenn., Letters Received from Reserve Corps, Jackson, Tenn.; McClernand Papers, IHi.
On May 3, McClernand wrote to USG. "I received the following order this morning, and have issued orders accordingly to the different Division Commanders. The order to move as you [are] aware from previous communications, finds a portion of my command without a sufficient supply of Haversacks, Knapsacks, canteens and camp equipage.... Leaving the guards previously detailed to protect the crossing of Snake & Owl creeks, you will tomorrow morning advance with four days cooked rations to Monterey, keeping in supporting distance of the right wing. Cavalry will be thrown out the right, to give notice of any flank movement of the enemy You will give all possible assistance to the advance of the Heavy Artillery which will follow the corps to which it belongs A regular organization of Artillery reserve will not be made till the army corps unite near Corinth—sgd—H. W. HALLECK ... As you will perceive I am instructed to keep in supporting distance of the right wing—Now I understand that Genl McKeans Division, a portion of the right wing does not move until to morrow, unless the right wing (understood to be Genl Thomas command moves rapidly it will delay my advance If your Engineer could immediatly im