A Rebel officer once told me that they were able to estimate the strength of McDowell's army before Manassas by the beating of bass drums at parades each evening.
Along about sundown the usual preparations were made in all the camps for the dress parade—the great feature of the day—which was being witnessed by hundreds, and perhaps thousands, of ladies, old men, and children, who would drive out from the town and surrounding country for miles to witness it, to the delight of the soldiers. What a beautiful sight, in June, 1861, was a full regiment of 1,000 freshly-uniformed, healthy, fresh men in line on dress parade, with their gayly-attired officers (staff and line), going through the "retreat" with fine musical accompaniment. How smart the adjutant was, and what a tremendous fellow the drum-major! On Sunday evenings, at this parade, the chaplain took a hand in the drill, making a prayer, while the long line of the full regiment stood at "parade rest," uncovered, with heads bowed, their little fatigue caps being placed on the muzzle of the gun; the band played "Old Hundred," and perhaps a chorus of a thousand male voices sung the soul-thrilling melody of the grand old tune, which is sung in Heaven. So it was in front of Hagerstown in June or July, 1861.
It was the fortune of war for me to be with the Army of the Potomac again before Hagerstown in July, 1863—a week after the battle of Gettysburg. But—ah, yes—the conditions were sadly changed; scarcely a brigade of that army could muster then as many men as were in each regiment in 1861. There were no visitors in camp; not a lady was to be seen, except, perhaps, the hospital attendants, and the music was confined to the tiresome routine of the "Reveille," "Tattoo" and "Taps."
My first day in General Patterson's army was so full of new and soul-stirring sensations, as compared with the same experiences in the rebel lines, that I was all in a ferment, and forgot about being tired, hungry and worn out, until the evening parades were all over, and the soldiers began to prepare their camp suppers.
While trudging wearily back to the town, some miles distant, to find some supper and a bed, I had the opportunity to reflect seriously in my own mind over the work that I had undertaken.
I wondered to myself if there were not Rebel spies in our army there. It occurred to me at once that there were no obstacles for them to overcome—the entire camp was free; everybody was welcomed indiscriminately to the camp by the good-hearted soldiers; and officers were only too eager to talk with every caller about all they knew of the plans and strength of their own army. This, notwithstanding we were then encamped in Maryland, among a people who, if not openly hostile to our cause, were generally in sympathy with the secessionists, whose army was within fighting distance and communication with their headquarters was only a question of an hour or so.
Our officers and soldiers had certainly taken Hagerstown, Md., as I found to my disgust when I reached the hotel after dark, finding every bed and every corner of the old tavern was literally in possessions of our forces, though, through the kindly interest of a citizen, I was luckily provided with half a bed in a private house. Of course I slept well, except that I was disturbed by a horrid nightmare. I had somehow been transformed into a big brass drum, which a brawny fellow insisted upon pounding upon my stomach, which probably hadn't succeeded in digesting the cold supper.
The first thing next morning was to try and find General Patterson. My experience of the previous day enabled me to steer in a straight course this time, so I was not long in getting to headquarters; but seeing General Patterson was not such an easy matter. His staff officers volunteered to attend to business for their General, but I wouldn't, of course, allow any person to learn the character of my business. It was only after I had written a note, stating that I had a letter from the Secretary of War which I desired to present personally, that I was permitted to approach the Commander.
I need not describe the old Philadelphia militia General. He had, as is well-known, achieved some distinction during the Mexican War, and since that had enjoyed a life of leisure in his native city, where he had, by means of his wealth and accomplishments, become connected with the aristocratic families of the Quaker City. He was, besides, a patron of the military and the clubs; and being so favorably endorsed by prominent people of the State, he was selected to command the troops of Pennsylvania, then operating against General Joe Johnston of the rebel army.
After some further delay, I was admitted to the presence of the old general, who, I imagined, was surprised at my youthful appearance and wondered that I had the temerity to beard such a grim old soldier as himself in his den.