13th New Hampshire Volunteer Infantry The 13th New Hampshire Volunteer Infantry was an infantry regiment that served in the Union Army during the American Civil War . The regiment is reputed to have the distinction of having the first U . S . flags in the city of Richmond , Virginia on April 3 , 1865 . Service . The 13th New Hampshire Infantry was organized in Concord , New Hampshire and mustered in for a three - year enlistment on September 20 , 1862 under the command of Colonel Aaron Fletcher Stevens . The regiment was attached to Casey ' s Division , Military District of Washington , to December 1862 . 1st Brigade , 3rd Division , IX Corps , Army of the Potomac , to January 1863 . 3rd Brigade , 3rd Division , IX Corps , to April 1863 . 3rd Brigade , 2nd Division , VII Corps , Department of Virginia , to July 1863 . 3rd Brigade , Getty ' s Division , United States forces , Norfolk and Portsmouth , Department of Virginia and North Carolina , to April 1864 . 2nd Brigade , 1st Division , XVIII Corps , Army of the James , to July 1864 . 1st Brigade , 1st Division , XVIII Corps , to December 1864 . 1st Brigade , 3rd Division , XXIV Corps , Department of Virginia , to June 1865 . The 13th New Hampshire Infantry mustered out of service June 22 , 1865 . Veterans and recruits were transferred to the 2nd New Hampshire Infantry . Detailed service . Left New Hampshire for Washington , D . C . , October 5 , 1862 . Duty near Fort Albany , defenses of Washington , until December 4 , 1862 . March to Falmouth , Va . , December 5 – 9 . Battle of Fredericksburg December 12 – 15 . Burnside ' s Second Campaign " Mud March " January 20 – 24 , 1863 . Moved to Newport News , Va . , February 9 , then to Suffolk March 13 . Siege of Suffolk April 12 - May 4 . Providence Church Road , Nansemond River , May 3 . Reconnaissance across the Nansemond May 4 . Moved to Portsmouth May 13 , then to Yorktown . Dix ' s Peninsula Campaign June 24 - July 7 . Expedition from White House to South Anna River July 1 – 7 . Moved to Portsmouth July 8 – 14 ; then to Julian Creek July 30 , and duty there until March 19 , 1864 . Moved to Yorktown March 19 . Butler ' s operations on south side of James River and against Petersburg and Richmond May 4 – 28 . Port Walthall Junction , Chester Station , May 6 – 7 . Swift Creek ( or Arrowfield Church ) May 9 – 10 . Operations against Fort Darling May 12 – 16 . Battle of Drewry ' s Bluff May 14 – 16 . Bermuda Hundred May 17 – 27 . Moved to White House , then to Cold Harbor , May 27 – 31 . Battles about Cold Harbor June 1 – 12 . Before Petersburg June 15 – 19 . Siege of Petersburg and Richmond June 16 , 1864 to April 2 , 1865 . In trenches before Petersburg until August 27 , 1864 . Mine Explosion Petersburg July 30 ( reserve ) . Duty on the Bermuda Front until September 26 . Battle of Chaffin ' s Farm , New Market Heights , Fort Harrison , September 28 – 30 . Assigned to duty as garrison at Fort Harrison . Battle of Fair Oaks October 27 – 28 . Duty in works before Richmond until April 1865 . Occupation of Richmond April 3 . Provost duty at Manchester until June . Mustered out June 22 , 1865 . Veterans and recruits transferred to 2nd New Hampshire . Casualties . The regiment lost a total of 181 men during service ; 5 officers and 84 enlisted men killed or mortally wounded , 92 enlisted men died of disease .