member of the same household

(e) the expression "member of the same household" includes a visitor spending the night before or after the day of the poll in the same dwelling house and a person employed by a member of the household at the dwelling-house unless so employed exclusively for the purpose of that member’s trade, profession or business.
LN 70/1959 - ELECTIONS (CONTROL OF MOTOR VEHICLES AND VESSELS) REGULATIONS 1959
2. Interpretation.