Samuel P. Heintzelman to J. H. Taylor, June 12, 1863

Via FarrFax Court-Hovuse, Va., 8 p. m. Col. J. H. Taytor, I did not find Mosby at Ball’s Mills, as hoped; found his track across the Old Carolina road, about 1 milefrom the creek. He had crossed the creek from the east, near Garlick’s Ford, moving on the west side to near Carter’s Ford, recrossing, and moving across fields tothe Middleburg road. He passed Carter’s yesterday at noon. We crossed Goose Creek at Carter’s, and proceeded to Little River road, near Aldie. Had just selected 200 of my best horses togo up through Middleburg, when Major Hammond appeared from that direction with 400 men of his own regiment and the First [West] Virginia Cavalry, reporting all quiet at Middleburg. Mosby had arrived yesterday at 2 o’clock, and disbanded immediately. He had no artilny, with him where I followed his trail. shall return to camp by Chain Bridge early to-morrow, unless otherwise ordered. Cc. R. LOWELL, Jr., Colonel Second Massachusetts Cavalry.

HEADQUARTERS DEPARTMENT OF Washington, Jume 12, 18683—12 m. Major-General STAHEL,

GENERAL: It is ae by Colonel Lowell that Mosby disbanded his people near Middleburg. Have all the houses in that vicinity searched for arms and ammunition. Arrest all men known to be disloyal, and leave no horses which can be used by guerrillas. Do the same at and in the vicinity of Brentsville.

By command of Major-General Heintzelman :