This party worked with extraordinary vigor till three o’clock, all the men in the trenches all the time, the officers giving their whole energy to supervising the men; Captain McKensie, in command of the working party, exhibiting great energy and efficiency. The day was quite warm, and an immense amount of work done. Lieutenant Mason at the batteries with fatigue party under the command of Captain Swartwout.

Tuesday, March 23. A fatigue party of 200 men reported to Lieutenant Stevens, and commenced work in the boyaux at 9½ A.M., working with great vigor till dark, all the men constantly at work, and made the boyaux very safe and commodious,—two companies regulars, Captain E.W. Smith and Lieutenant Bissel, 5th infantry, two companies marines.

Note. More work is done by day than by night under fire. The working parties by day did at least double the work per man of the working parties by night. A severe sand-storm blowing all day and night.

Lieutenant Stevens reported the completion of the boyaux to the chief engineer at 8½ P.M., and, after an hour’s rest, at his request returned to the trenches and assisted Lieutenant Mason till relieved at four o’clock in the morning.

Thursday, March 25. Lieutenants Mason and Stevens relieved the engineer officers on the right at four A.M. Great exertions were made at Battery No. 4, which opened its fire at eight A.M. The fatigue party in the trenches, Alabama volunteers, under the command of Lieutenant-Colonel Earle, remarkably fearless and efficient. One sapper and two volunteers placed at each embrasure to repair it after every discharge. By their courage and exertions, the fire of the battery was not obstructed during the day. Lieutenant Mason made three reconnoissances of the enemy’s works, accompanied twice by Lieutenant Stevens. Two companies of the 1st artillery served the guns, Captain Magruder and Lieutenant Haskin; Major L. Whitney in command of the force serving the batteries.

At eleven A.M. Captain Lee commenced establishing a new mortar battery on the left of No. 1.

Saturday, March 27. A severe norther raging yesterday made great ravages in the works that were repaired to-day. Lieutenants Mason and Stevens in the trenches at four A.M. A new mortar battery commenced yesterday nearly finished to-day, under the particular direction of Lieutenant Stevens, with a working party of one company of the 4th infantry under the command of Lieutenant Lincoln.

Sunday, March 28. A partial survey of the trenches made by Lieutenants Beauregard, Stevens, and Tower.

Camp Washington (three miles from Vera Cruz),
March 27, 1847.

My dearest Margaret,—I have now the unspeakable satisfaction of telling you that both the city and the castle have capitulated after a bombardment of rather less than four days, and from the ninth day of opening the trenches, and with a loss on our side of less than forty in killed and wounded. I will tell you what your poor subaltern of a husband has had to do in this matter. On Thursday, March 18, I made a reconnoissance with Mason to determine the position of a road for wagons, and of a covered communication for infantry. On Friday morning, March 19, I left camp at two in the morning, and was kept hard at work till four the next morning in constructing a battery and opening the communications thereto. During the course of this operation the enemy hurled at us some two hundred round-shot and shells. None came very near me. I had to encourage the men at their work, and had no time to attend to my fears.