Rules of the House of Representatives for the One Hundred
, pp. 5-6:
In clause 8(c)(3) of rule XXIII, strike "father, mother, son, daughter, brother, sister, uncle,
aunt, first cousin, nephew, niece, husband, wife, father-in-law, mother-in-law, son-in-law, daughter-in-law, brother-in-law, sister-in-law, stepfather, stepmother, stepson, stepdaughter, stepbrother, stepsister, half brother, half sister, grandson, or granddaughter" and insert "parent, child, sibling, parent's
sibling, first cousin, sibling's child, spouse, parent-in-law, child-in-law, sibling-in-law, stepparent, stepchild, stepsibling, half-sibling, or grandchild".
On kinship terms, see Emile Benveniste, Indo-European Language and Society
, tr. Elizabeth Palmer (Coral Gables: University of Miami Press, 1973 = Miami Linguistics Series
, 12), Book 2 ("The Vocabulary of Kinship").