All members of the board of cemetery trustees shall be resident electors for the prescribed term of office. The residency requirement may be waived as provided in the Charter. Any member of the council, employee of the city or officer thereof may serve on the board.  The mayor, with the advice and consent of the city council, or the council acting on its own motion, may appoint members to staggered terms of office of the board of cemetery trustees as provided by the bylaws thereof. No member of the board of cemetery trustees shall receive compensation as such, but the city council may authorize payment of reasonable and necessary expenses incurred by any such member in the performance of authorized business of the board.