Section 457:2 Marriages Prohibited. - New Hampshire Statutes

No person shall marry his or her father, mother, father's brother, father's sister, mother's brother, mother's sister, son, daughter, brother, sister, son's son, son's daughter, daughter's son, daughter's daughter, brother's son, brother's daughter, sister's son, sister's daughter, father's brother's son, father's brother's daughter, mother's brother's son, mother's brother's daughter, father's sister's son, father's sister's daughter, mother's sister's son, or mother's sister's daughter. No person shall be allowed to be married to more than one person at any given time.

Source. RS 147:2. CS 156:2. GS 161:2. 1869, 9:2. GL 180:2. PS 174:2. PL 286:2. RL 338:2. RSA 457:2. 1965, 46:1. 1987, 218:2, eff. July 17, 1987. 2009, 59:1, eff. Jan. 1, 2010.