Head Quarters, Army of the Tenn.
Camp in the Field, May 15th 1862.
MAJOR. GEN. G. H. THOMAS,
COMMDG RIGHT WING.
The two Divisions of the Reserve having an extended line to guard with Cavalry, and but about 350 men to do the duty, You will please designate two squadrons from your Command to report to Major Gen J. A. McClernand, Commdg Reserve, for duty temporarily.
Your Obt. Servant.
U. S. GRANT.
Copies, DLC-USG, V, 1, 2, 3, 86; DNA, RG 393, USG Letters Sent.
On May 14, 1862, Maj. Gen. John A. McClernand wrote to USG. "I am guarding a line of about three miles by a cavalry force of 255 men. Part of this line is in front and near the enemy's picket. The consequence is, that the Cavalry of the 1st Division (Genl. Logan) being continually on duty, is nearly worn out. Between the right of the picket line of the 1st Divn. and Genl Wallace's camp some five miles intervene. I desire to close this space, by an extension of the line of pickets. What has been said verifies Genl. Logan's inability to do it; while it is quite as much out of the power of Genl Wallace to do it. Genl Wallace, if possible is still worse off, in this respect, than Genl Logan. Two of his companies being detached on fatigue, at Pittsburgh, leaving him only 104 Cavalry men. As all the passes of Owl Creek are guarded, and as the two Cavalry Companies refered to are used (as I understand) only as an escort for teams, cannot they be remanded to their Division ? It appears that the 5th Division of the army of the Tenn. has 10 Companies of Cavalry—the 4th Division 8 Comps. —the 2nd Divn. 7 Comps. —the 7th Division 12 Comps. and the 6th Division 8 Comps. I respectfully ask and urge a detachment from some one or more of these Divisions to increase the Cavalry force of the Reserves. The exhaustion and suffering of the small Cavalry force of the latter, as well as the good of the service, would plead for it. Genl. Wallace's Cavalry has not been relieved from duty for three days; while the same is true in a great measure, in regard to Genl. Logan's Division. Genl Wallace also informs me that he is in great need of an Engineer for his Division. Please bear with me in adding the further request that this want be early supplied." LS, ibid., District of West Tenn., Letters Received; DfS, ibid., Dept. of the Tenn., Letters Received from Reserve Corps, Jackson, Tenn.