No woman shall marry her father, grandfather, son, grandson, brother, stepfather, grandmother's husband, daughter's husband, granddaughter's husband, husband's grandfather, husband's son, husband's grandson, brother's son, sister's son, father's brother or mother's brother.
Mass. Gen. Laws ch. 207, § 2
Marriage of woman 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.