“A Mexican soldier at the principal gate was packing a mule with ordnance.

“‘Can you hit that fellow, Hagney?’ was asked.

“‘I’ll try,’ was the quiet and laconic reply. The long gun was pointed and levelled. At this moment the soldier stooped by the side of the mule in the act of tightening the girth. ‘Fire!’ said Hagney, and almost simultaneous with the shot a cloud of dust rose over the causeway. When this cleared away the mule was seen running wild along the Calzada, while the soldier lay dead by the wall.

“On the day when Chapultepec was stormed, September 13th, 1847, I was in command of the Grenadier Company of 2nd New York Volunteers—my own—and a detachment of United States Marines, acting with us as light infantry, my orders being to stay by and guard the battery we had built on the south-eastern side of the Castle during the night of the 11th. It was about a thousand yards from, and directly in front of, the Castle’s main gate, through which our shots went crashing all the day. The first assault had been fixed for the morning of the 13th, a storming party of 500 men, or ‘forlorn hope,’ as it was called, having volunteered for this dangerous duty. These were of all arms of the service, a captain of regular infantry having charge of them, with a lieutenant of Pennsylvanian Volunteers as his second in command.

“At an early hour the three divisions of our army, Worth’s, Pillow’s and Quitman’s, closed in upon Chapultepec, our skirmishers driving the enemy’s outposts before them; some of these retreating up the hill and into the Castle, others passing around it and on towards the city.

“It was now expected that our storming party would do the work assigned to it, and for which it had volunteered. Standing by our battery, at this time necessarily silent, with the artillery and engineer officers who had charge of it, Captain Huger and Lieutenant Hagney, we three watched the advance of the attacking line, the puffs of smoke from musketry and rifles indicating the exact point to which it had reached. Anxiously we watched it. I need not say, nor add, that our anxiety became apprehension when we saw that about half-way up the slope there was a halt, something impeding its forward movement. I knew that if Chapultepec were not taken, neither would the city, and failing this, not a man of us might ever leave the Valley of Mexico alive.

“Worth’s injudicious attempt upon the intrenchments of Molino del Rey—to call it by no harsher name—our first retreat during the campaign, had greatly demoralised our men, while reversely affecting the Mexicans, inspiring them with a courage they had never felt before. And there were 30,000 of these to our 6,000—five to one—to say nothing of a host of rancheros in the country around and leperos in the city, all exasperated against us, the invaders. We had become aware, moreover, that Alvarez with his spotted Indians (pintos) had swung round in our rear, and held the mountain passes behind us, so that retreat upon Puebla would have been impossible. This was not my belief alone, but that of every intelligent officer in the army: the two who stood beside me feeling sure of it as myself. This certainty, combined with the slow progress of the attacking party, determined me to participate in the assault. As the senior engineer officer out-ranked me, it was necessary I should have his leave to forsake the battery—now needing no further defence—a leave freely and instantly given, with the words: ‘Go, and God be with you!’

“The Mexican flag was still waving triumphantly over the Castle, and the line of smoke-puffs had not got an inch nearer it; nor was there much change in the situation when, after a quick run across the intervening ground with my following of volunteers and marines, we came up with the storming party at halt, and irregularly aligned along the base of the hill. For what reason they were staying there we knew not at the time, but I afterwards heard it was some trouble about scaling ladders. I did not pause then to inquire, but, breaking through their line with my brave followers, pushed on up the slope. Near the summit I found a scattered crowd of soldiers, some of them in the grey uniform of the Voltigeur Regiment; others, 9th, 14th and 15th Infantry. They were the skirmishers, who had thus far cleared the way for us, and far ahead of the ‘forlorn hope.’ But beyond lay the real area of danger, a slightly sloping ground, some forty yards in width, between us and the Castle’s outward wall—in short, the glacis. It was commanded by three pieces of cannon on the parapet, which, swept it with grape and canister as fast as they could be loaded and fired. There seemed no chance to advance farther without meeting certain death. But it would be death all the same if we did not—such was my thought at that moment.

“Just as I reached this point there was a momentary halt, which made it possible to be heard; and the words I then spoke, or rather shouted, are remembered by me as though it were but yesterday:

“‘Men! if we don’t take Chapultepec, the American army is lost. Let us charge up to the walls.’