Elisha Bostwick was a soldier in the Continental Army who took part in the battle and published his memoirs shortly after. We join his story as Washington (whom he refers to as "his Excellency") and his force begin to cross the Delaware:
"[Our] army passed through Bethleham and Moravian town and so on to the Delaware which we crossed 9 miles north of Trenton and encamped on the Pennsylvania side and there remained to the 24th December. [O]ur whole army was then set on motion and toward evening began to re-cross the Delaware but by obstructions of ice in the river did not all get across till quite late in the evening, and all the time a constant fall of snow with some rain, and finally our march began with the torches of our field pieces stuck in the, exhalters. [They] sparkled and blazed in the storm all night and about day light a halt was made at which time his Excellency and aids came near to the front on the side of the path where soldiers stood.
I heard his Excellency as he was coming on speaking to and encouraging the soldiers. The words he spoke as he passed by where I stood and in my hearing were these:
'Soldiers, keep by your officers. For God's sake, keep by your officers!' Spoke in a deep and solemn voice.
While passing a slanting, slippery bank his Excellency's horse's hind feet both slipped from under him, and he seized his horse's mane and the horse recovered.
Our horses were then unharnessed and the artillery men prepared. We marched on and it was not long before we heard the out sentries of the enemy both on the road we were in and the eastern road, and their out guards retreated firing, and our army, then with a quick step pushing on upon both roads, at the same time entered the town. Their artillery taken, they resigned with little opposition, about nine hundred, all Hessians, with 4 brass field pieces; the remainder crossing the bridge at the lower end of the town escaped....
Marched the next day with our prisoners back to a...