Official Records
The records of the U.S. District Court for the District of New Hampshire are included among Record Group 21 at the:
National Archives at Boston
Frederick C. Murphy Federal Center
380 Trapelo Road
Waltham, Massachusetts 02452-6399
Email: waltham.archives@nara.gov
A guide to the holdings of the regional archives is available at: https://www.archives.gov/boston/finding-aids
A published description of the records is also available in the Guide to Federal Records in the National Archives of the United States, 1995 (http://www.archives.gov/research/guide-fed-records/index.html ).
Bibliography
Starr, James R., ed. The History of the New Hampshire Courts. Concord, NH: U.S. District Court, New Hampshire District, 1991.