4th New Hampshire Volunteer Infantry The 4th New Hampshire Volunteer Infantry was an infantry regiment that served in the Union Army during the American Civil War . Service . The 4th New Hampshire Infantry was organized in Manchester , New Hampshire , and mustered in for a three - year enlistment on September 18 , 1861 . The regiment was attached to Casey ' s Provisional Brigade , Army of the Potomac , October 1861 . Wright ' s 3rd Brigade , Sherman ' s South Carolina Expeditionary Corps to March 1862 . District of Florida , Department of the South , to September 1862 . Brannan ' s Brigade , District of Beaufort , South Carolina , X Corps , Department of the South , to April 1863 . United States Forces , Folly Island , South Carolina , X Corps to June 1863 . 1st Brigade , United States Forces , Folly Island , South Carolina , to July 1863 . 1st Brigade , 1st Division , Morris Island , South Carolina , X Corps , July 1863 . 1st Brigade , Morris Island , South Carolina , to January 1864 . District of Beaufort , South Carolina , to February 1864 . Foster ' s Brigade , Dodge ' s Division , District of Florida , February 1864 . District of Beaufort , South Carolina , to April 1864 . 1st Brigade , 3rd Division , X Corps , Army of the James , Department of Virginia and North Carolina , to May 1864 . 3rd Brigade , 3rd Division , XVIII Corps , Army of the Potomac , to June 1864 . 3rd Brigade , 2nd Division , X Corps , to December 1864 . 3rd Brigade , 2nd Division , XXIV Corps , to March 1865 . 3rd Brigade , 2nd Division , X Corps , Department of North Carolina , to August 1865 . The 4th New Hampshire Infantry mustered out of service August 23 , 1865 . Detailed service . Moved to Washington , D . C . , September 27 – 30 ; then to Annapolis , Md . , October 9 . Expedition to Port Royal , S . C . , October 21 - November 7 , 1861 . Capture of Forts Walker and Beauregard , Port Royal Harbor , November 7 . Duty at Hilton Head , S . C . , until January 21 , 1862 . Expedition to Florida January 21 - March 2 . Occupation of Fernandina , Fla . , March 5 . Occupation of Jacksonville , Fla . , March 12 to April 8 ( Companies E and F , provost duty at Fernandina until April ) . Regiment moved from Jacksonville to St . Augustine , Fla . , April 9 , and garrison duty there until September 6 . ( Companies B , H , and K moved to James Island , S . C . , June 8 . Action on James Island June 10 . Moved to Beaufort , S . C . , June 12 , and duty there until April 1863 . ) Regiment moved from St . , Augustine , Fla . , to Beaufort , S . C . , September 6 , 1862 , and duty there until April 1863 . Expedition to Pocotaligo , S . C . , October 21 – 23 , 1862 . Action at Caston and Frampton ' s Plantations , Pocotaligo , October 22 . Expedition against Charleston April 4 – 11 , 1863 . Expedition to North Edisto River April 17 – 28 . Moved to Folly Island , S . C . , April 29 , and siege operations against Morris Island until July . Expedition to James Island July 9 – 16 . Secessionville July 16 . Siege operations against Forts Wagner and Gregg , Morris Island , S . C . , and against Fort Sumter and Charleston until January 1864 . Capture of Forts Wagner and Gregg September 7 , 1863 . Moved to Beaufort , S . C . , January 17 . Expedition to Whitmarsh Island February 20 – 22 , 1864 . Moved to Jacksonville , Fla . , February 23 , and return to Beaufort , S . C . , February 26 . Veterans on furlough March – April . Non - veterans at Beaufort until April 12 , then ordered to Gloucester Point , Va . Butler ' s operations on south side of James River and against Petersburg and Richmond May 4 – 27 . Capture of Bermuda Hundred and City Point May 5 . Chester Station May 6 – 7 . Swift Creek ( or Arrowfield Church ) May 9 – 10 . Operations against Fort Darling May 12 – 16 . Drewry ' s Bluff May 14 – 16 . Bermuda Hundred May 16 – 27 . Moved to White House Landing , then to Cold Harbor May 27 - June 1 . Battles of Cold Harbor June 1 – 12 . Before Petersburg June 15 – 19 . Siege of Petersburg June 16 to December 7 . Duty in trenches before Petersburg June 23 to July 30 . Mine Explosion July 30 . Demonstration north of James River August 13 – 20 . Strawberry Plains August 14 – 18 . Bermuda Hundred August 24 – 25 . Duty in trenches before Petersburg until September 25 . ( Non - veterans mustered out September 18 , 1864 . ) New Market Heights , Chaffin ' s Farm , September 28 – 30 . Duty on north side of the James , operating against Richmond , until December 7 . Fair Oaks October 27 – 28 . Expedition to Fort Fisher , N . C . , December 7 – 27 . 2nd Expedition to Fort Fisher January 7 – 15 , 1865 . Assault and capture of Fort Fisher January 15 . Sugar Loaf Battery February 11 . Fort Anderson February 18 . Capture of Wilmington February 22 . Advance on Kinston and Goldsboro March 6 – 21 . Guard railroad from Little Washington to Goldsboro until August . Casualties . The regiment lost a total of 234 men during service ; 3 officers and 82 enlisted men killed or mortally wounded , 5 officers and 194 enlisted men died of disease .