casualties in the Second New York regiment. From this point to Centreville, a portion of the First Ohio was detailed, under the command of Lieut.-Col. Parrott, and acted efficiently as a rear guard covering the retreat. Arrived at Centreville I halted the two Ohio regiments on the hill, and proceeded to call on Gen. McDowell, whom I found engaged in rallying the reserve of the army and other troops in line of battle to meet an expected attack that night of the enemy at that point. I offered him our services, and asked for orders, premising, however, that unfed and weary troops, who had been 17 hours on the march and battle-field, might not be very effective, unless it were to be posted as a reserve in case of a later emergency. Gen McDowell directed me to take them to the foot of the hill, there to stay and encamp. This I did, establishing the two regiments together in the wood to the left of the turnpike. After resting here about two hours, I was notified that your division, with the rest of the forces under the General commanding, were leaving Centreville, and received your order to fall back on Washington. I took the route by Fairfax Court House, and thence across to Vienna, arriving at the latter place at 3 1/2 A. M., on the morning of the 22d, and there resting the troops for two hours in an open field. During the march we did what was possible to cover the rear of the column then scattered on the road. Two miles or less this side of Vienna, Col. Cook, with the main body of his regiment, turned upon the road leading to the Chain Bridge over the Potomac, thinking it might be a better way, and at the same time afford, by the presence of a large and organized body, protection to any stragglers that might have taken that route. Lieutenant-Colonel Mason, with the Second Ohio, marched in by the way of Fall's Church and Camp Upton. The return of the Ohio regiments to Washington was made necessary by the fact that their term of service having expired, they are at once to be sent home, to be mustered out of service. Not having been able to obtain yet complete or satisfactory returns of all the casualties in the battle, in the different corps of my brigade, I shall reserve the list of them for a separate report, which I will furnish as soon as practicable. I am very respectfully, Your obedient servant,
Robert Schenck, Brigadier-General.
Col. Richardson's report.
camp of the Fourth brigade of Tyler's Division and Gen. McDowell's Corps. Near Arlington, July 25, 1861.General: I have the honor to submit the following report as to the operations of my brigade in front of the enemy at Bull Run, on Sunday, July 21. On the night of July 20 I was summoned to attend a meeting of commanders of brigades at the Headquarters of the commanding officer in the field, Gen. McDowell; and, in common with the other commanders of brigades, I was instructed as to what was expected of my particular command on the following day — that is, I was to defend the position which I then occupied in front of the enemy, called the Blackburn Ford, and about one mile in his front, where we had been for the last three days. I was also ordered to consider myself under the command of Col. D. S. Miles, United States Army, who was to command his own brigade at Centreville, as well as my own and that of Col. Davies, midway between the two--these three brigades constituting what was then called the reserve. Attached to my brigade was the field battery of Major Hunt, United States Army, and also the rifled battery of ten-pounders, under Lieut. Green, United States Army. I was to open fire on the enemy, for the purpose of making a diversion, not before, but soon after hearing the report of Gen. Tyler's cannonade on my right, to carry out which purpose I made the following disposition of the brigade: The two batteries I placed upon the ridge of the hill, in view of the enemy; the 3d Michigan infantry on the left of the road, in line of battle. Still further, six hundred yards to the left, on a commanding hill, I had placed the day before two companies of the 1st Massachusetts regiment, for the purpose of occupying a log barn and a frame barn; which companies pushed pickets still farther to our left for the security of that point, which I considered a good position for artillery. In a ravine, half way between the two positions, I placed also a company of the 1st Massachusetts regiment, which pushed pickets down the ravine to its front; and on the extreme right of all I placed the balance of the Massachusetts regiment, in line of battle, with two companies of that regiment pushed 400 yards to the right and front, which two companies again threw pickets in advance. The New York and 2d Michigan regiments I placed in the road, 500 yards in rear of the line, as a reserve. Soon after making these arrangements, which I did on hearing the report of our artillery on the right, Col. Davies's brigade made its appearance, with him at his head; and inquiring of me the date of my commission, found that he ranked me by two days, and he assumed the command. That officer wished a good position for artillery to open, and I immediately proposed the position on our left, near the log house, from which a good view of a large stone house — called by the people of the country the enemy's Headquarters — might be obtained. Col. Davies brought up with him the rifled 20-pounder battery of Lieut. Benjamin, and ordered it to open fire immediately. He directed also Hunt's battery to his assistance, and I ordered Green's battery to open its fire at the same time. The enemy appeared to have withdrawn his guns from that position, as He returned no fire, or he might have been reserving his fire for the last attack. An hour's cannonading, however, brought in view a column