Morristown Jan. 7 1777.
I wrote to you from Trenton by a Mr. Furness which I hope you have received. I then informed you that we soon expected another tussle. I was not out in my conjecture. About three o'clock on the second of January, a column of the enemy attacked a party of ours which was stationed one mile above Trenton. Our party was small and did not make much resistance. The enemy, who were Hessians, entered the town pell-mell pretty much in the same manner that we had driven them a few days before.
Nearly on the other side of Trenton, partly in the town, runs a brook [the Assanpink], which in most places is not fordable, and over which through Trenton is a bridge. The ground on the other side is much higher than on this, and may be said to command Trenton completely. Here it was our army drew up with thirty or forty pieces in front. The enemy pushed our small party through the town with vigor, though not with much loss. Their retreat over the bridge was thoroughly secured by the artillery. After they had retired over the bridge, the enemy advanced within reach of our cannon, who saluted them with great vociferation and some execution. This continued till dark when of course it ceased, except a few shells which we now and then chucked into town to prevent their enjoying their new quarters securely. As I before mentioned, the creek was in our front, our left on the Delaware, our right in a wood parallel to the creek. The situation was strong, to be sure; but hazardous on this account, that had our right wing been defeated, the defeat of the left would almost have been an inevitable consequence, and the whole thrown into confusion or pushed into the Delaware, as it was impassable by boats.
From these circumstances the general thought best to attack Princeton, twelve miles in the rear of the enemy's grand army, and where they had the 17th, 40th, and 55th regiments, with a number of draughts, altogether perhaps twelve hundred men. Accordingly about one o'clock at night we began to march and make this most extra manœvre. Our troops marched with great silence and order, and arrived near Princeton a little after daybreak. We did not surprise them as at Trenton; for they were on their march down to Trenton, on a road about a quarter of a mile distant from that in which we were. You may judge of their surprise when they saw such large columns marching up. They could not possibly suppose it was our army, for that they took for granted was cooped up near Trenton. They could not possibly suppose it was their own array returning by a back road; in short, I believe they were as much astonished as if an army had dropped perpendicularly upon them. However they had not much time for consideration. We pushed a party to attack them. This they repulsed with great spirit, and advanced upon another column just then coming out of a wood, which they likewise put in some disorder; but fresh troops coming up, and the artillery beginning to play, they were after a smart resistance put totally to the rout. The 18th regiment used their bayonets with too much severity upon a party they put to flight; but they were paid for it in proportion, very few escaping. Near sixty were killed on the spot besides the wounded. We have taken between three and four hundred prisoners, all British troops. They must have lost in this affair nearly five hundred killed, wounded, and prisoners. We lost some gallant officers. Brigadier-General Mercer was wounded: he had three separate stabs with a bayonet. A Lieutenant-Colonel Fleming was killed, and Captain Neil of the artillery an excellent officer. Mercer will get better. The enemy took his parole after we left Princeton. We took all their cannon, which consisted of two brass six-pounders, a considerable amount of military stores, blankets, guns, &c. They lost, among a number of other officers, a Captain Leslie, a son of the Earl of Leven and nephew to General Leslie: him we brought oft and buried with honors of war.
After we had been about two hours at Princeton, word was brought that the enemy was advancing from Trenton. This they did, as we have since been informed, in a most infernal sweat,—running, puffing, and blowing, and swearing at being so outwitted. As we had other objects in view, to wit, breaking up their quarters, we pursued our march to Somerset Court House, where there were about thirteen hundred quartered, as we had been informed. They, however, had marched off, and joined the army at Trenton. We at first intended to have made a forced march to Brunswick; but our men having been without rest, rum, or provisions for two nights and days were unequal to the task of marching seventeen miles further. If we could have secured one thousand fresh men at Princeton to have pushed for Brunswick, we should have struck one of the most brilliant strokes in all history. However the advantages are very great: already they have collected their whole force, and drawn themselves to one point, to wit, Brunswick.
The enemy were within nineteen miles of Philadelphia, they are now sixty miles. We have driven them from almost the whole of West Jersey. The panic is still kept up. We had a battle two days ago with a party of ours and sixty Waldeckers, who were all killed or taken, in Monmouth County in the lower part of the Jerseys. It is not our interest to fight a general battle, nor can I think, under all circumstances, it is the enemy's. They have sent their baggage to Staten Island from the Jerseys, and we are very well informed they are doing the same from New York. Heath will have orders to march there and endeavor to storm it from that side. 'There is a tide in the affairs of men, which taken at the flood leads on to victory.'
[Life, etc. of General Knox. By Francis S. Drake. Boston, 1873.]