No man shall marry his mother, grandmother, daughter, granddaughter, sister, stepmother, grandfather's wife, grandson's wife, wife's mother, wife's grandmother, wife's daughter, wife's granddaughter, brother's daughter, sister's daughter, father's sister or mother's sister.
Mass. Gen. Laws ch. 207, § 1
Marriage of man to certain relatives prohibited
Official source: Massachusetts Legislature. Reproduced from public-domain Massachusetts statutes; confirm against the official source for the current text. Not legal advice.