An observation from 2012: The march back to Alexandria was likely on the 15th. Please see discussion in Ron Baumgarten’s comment below. – Mike Goad, 3-18-2012
Alexandria, 16th.—Received orders last night to march at 4 this A. M. Simultaneously with the receipt of the order came a northeast wind and heavy clouds. The clouding up kept pace with our preparations to march, and such a day of rain I have not witnessed in Virginia. To-night, after a march of twelve miles through mud and rain, the men lie out without shelter, except the little tents debris, which in time of rain are good for nothing. I shudder when I think of them, exposed, after a hard day’s march, to the driving storm. And whilst they are thus exposed, I feel almost guilty that I am in a fine hotel, by a fine coal fire, “comfortable and cozy.” But sickness brought me here. For three nights I have not slept, and last night I had an attack of cholera morbus. This morning, being sick and worn out, I asked permission to return to Vienna, (two and a half miles), and come in by rail. Permission was denied me. Sick or well, I must march, and look after the management of ambulances, and transportation of hospital stores. Arose at three o’clock, working part of time, and the rest cholera-morbus-ing till four. Started with the Brigade, but at Fairfax, for the first time since I entered the army, had to fall out. Went to bed, slept two hours, arose, took a cup of coffee, mounted my horse, and pressing my way through dense masses of the army for five or six miles, overtook the Brigade. When within a few miles of this city I was so sick that I insisted on being permitted to seek lodgings out of the weather, and having received permission, came on here. Have got dry and warm, and am now feeling better. I am gratified to learn to-night that my two poisoned boys are doing well, though it will be a long time before they entirely recover.
When I left Fairfax this morning the scene was grand beyond description. The soldiery, densely filling the road, leading from the town, had been pouring steadily forward for more than two hours. I looked back, and as far as the eye could reach down the two roads coming in, the dense body blocked them in both directions. The three roads presenting a long blue line rendered more striking by the glare of the bayonets, which at a short distance looked like a solid body of glittering steel over the blue bulk below. How far back the lines extended, I could not see, but I pressed forward for six miles, through the dense crowd. Verily, the army is now in motion.
16th.—’Tis Sunday morning. Returned to my regiment this morning; found all quiet. No one yet knows our destination. But from the fact that some forty river steamers await us, we infer that we are not going to sea. A singular fact, worthy of note: On our arrival here to embark, not a steamer had coaled, and there was no coal to take on!!— Why is this? ‘Tis terrible to even suspect that treason may be at work in the very heads of our departments.