Authorized 22 May 1775 in the New Hampshire State Troops as the 1st New Hampshire Regiment.
Organized 3 June 1775 at Medford, Massachusetts, to consist of ten companies from Hillsborough and Rockingham Counties.
Adopted 14 June 1775 into the Continental Army and assigned to the Main Army. Assigned 22 July 1775 to Sullivan’s Brigade, an element of the Main Army.
Reorganized and redesignated 1 January 1776 as the 5th Continental Regiment, to consist of eight companies.
Relieved 27 April 1776 from Sullivan’s Brigade and assigned to the Canadian Department.
Relieved 2 July 1776 from the Canadian Department and assigned to the Northern Department.
Assigned 20 July 1776 to Stark’s Brigade, an element of the Northern Department.
Relieved 26 November 1776 from Stark’s Brigade and assigned to the Main Army (later to Sullivan’s Brigade).
Reorganized and redesignated 1 January 1777 as the 1st New Hampshire Regiment, to consist of eight companies.
Relieved 14 February 1777 from Sullivan’s Brigade and assigned to the Northern Department.
Assigned 28 April 1777 to the New Hampshire Brigade, an element of the Northern Department.
(New Hampshire Brigade relieved 20 October 1777 from the Northern Department and assigned to the Main Army.)
Reorganized 23 December 1778 to consist of nine companies.
(New Hampshire Brigade relieved 19 August 1781 from the Main Army and assigned to the Highlands Department; relieved 10-14 October 1781 from the Highlands Department and assigned to the Northern Department; relieved 12 November 1782 from the Northern Department and assigned to the Main Army.)
Reorganized and redesignated 1 March 1783 as the New Hampshire Regiment, to consist of nine companies. Consolidated 22 June 1783 with the New Hampshire Battalion (formerly 2nd NH Regt.) and consolidated unit designated as the New Hampshire Battalion to consist of five companies.
Disbanded 1 January 1784 at New Windsor, NY.

Engagements:
- Siege of Boston
- Defense of Canada
- Lake Champlain
- Trenton – Princeton
- Saratoga
- Philadelphia – Monmouth
- Iroquois 1779
- Northern Department 1781
- Yorktown (Light Infantry Co. Only)
Source:
The Continental Army; Wright, Robert K.; Center of Military History, United States Army; Washington, DC.; 1989; Page 197.