Morning reports and monthly returns of various military units under the command of General John A. Quitman during the Mexican War. Some of the reports contain detailed casualty lists. The following units are represented: the U. S. Regiment of Marines; Alabama, Georgia, [1st] Mississippi, [1st] New York, 1st Pennsylvania, 2nd Pennsylvania, and South Carolina (Palmetto) Volunteer Infantry Regiments; the Baltimore Volunteer Infantry Battalion; Company H, 3rd Artillery; and Capt. Walls Artillery Battery. Series includes seventeen items, arranged chronologically.