A copy of the record of a marriage, certified by a city or town clerk or by the registrar of vital records, shall be received in all courts and places as evidence of the fact of the marriage.
N.H. Rev. Stat. Ann. § 457:38
Certified Copy of Record
Source
Official source: New Hampshire General Court. Reproduced from public-domain New Hampshire statutes; confirm against the official source for the current text. Not legal advice.