A great day of sport to usher in the new year. Amongst other amusements in our army, Hancock's Brigade "got up a time on its own hook." At twelve o'clock I went into the parade ground, and found about 10,000 people, soldiers and civilians, collected to witness the sport. Hancock's Brigade is composed of the 5th Wisconsin, 6th Maine, 43d New York, and 49th Pennsylvania Volunteers. The sport commenced by a foot race of one thousand yards, purse $20 for the first out, $10 for second. About twenty started. The 5th Wisconsin took both prizes. Then jumping three jumps, prize $15, won by a member of the 5th Wisconsin. Next, climbing a greased pole, first prize won by a member of 6th Maine. Second, by 5th Wisconsin. Next, a greased pig (a two hundred-pounder) with a face as long as the moral law, or as a "speech in Congress, shorn of his hair, the knot which had been tied in his tail to prevent his crawling through fence cracks, was untied, and his whole skin thoroughly "greased" with soft soap, was turned loose, with the announcement, "get what you can, and hold what you get." The holder was to have the pig and ten dollars. For this prize, there were about four thousand competitors. The word was given, and the "Grand Army of the Potomac" was at last on the move. This chase commenced a little before sun-set. Pig had one hundred yards the start. One fellow far outran all the rest, and as he drew close on to his game, piggy suddenly turned on him with a "booh," and the fellow ran t'other way as if he had seen a rebel. The whole crowd came rushing on piggy, expecting him to run; but piggy stood his ground and said "booh!" "The front line" suddenly brought a halt. But the rear, not prepared for so sudden a check, pressed forward, and the whole came down in a heap. A scream of "murder." Piggy answered "booh." At every "booh" a "line was swept away." The pile of humanity became impassable. Those in the rear, filed to right and left, and by a "flank movement" took piggy in the rear. And now came a hand to hand encounter. As the last streak of the expiring day shed its light upon the excited combatants, it revealed a living mass of four thousand people—and a pig; the pig crowning the heap at the moment when the ray withdrew its light. Night was then made hideous by the screams of murder and replies of "booh." Neither party could distinguish friend from foe; and as I retire for rest, the combat still rages. I do not permit myself to doubt, however, that the morning will bring us the news of "another great victory by the grand army of the Potomac."*
* Notice that in this athletic contest for prizes, three Eastern and one Northwestern Regiment engaged; all the prizes save one (climbing the pole, which was taken by a Maine sailor) were carried off by the one Western Regiment.
SOURCE: Alfred L. Castleman, The Army of the Potomac. Behind the Scenes. A Diary of Unwritten History; From the Organization of the Army, by General George B. McClellan, to the close of the Campaign in Virginia about the First Day January, 1863, pp. 70-2