Per Town Charter, Sec. 8-4 (k): A Finance Committee to consist of eleven (11) members and two associate members, to be appointed by the town moderator for terms of three (3) years each so arranged that as nearly an equal number of such terms as is possible shall expire each year.The chairman of the committee may designate the senior associate member to sit on the committee in case of absence of any member thereof or in the event of a vacancy on the board until said vacancy is filled by the town moderator.