New Hampshire Historical Society
From Ancestry.com Wiki
30 Park St.
Concord, NH 03301
The society includes a library, museum, and gift shop with superb collections of New Hampshire research materials and a large collection of local history and family genealogies. Microfilm copies of the Province Deeds and Probate records are located here. A strong point is the magnificent manuscript collection and pre-1900 newspapers on microfilm. The website provides an online catalog of its holdings.