There shall be three members, hereinafter called commissioners, of the Northeastern Forest Fire Protection Commission, appointed by the Governor. One of such commissioners shall be the State Forest Fire Warden, the second shall be a member of the legislature who is also a member of the Commission on Intergovernmental Cooperation, designated by said commission, and the third shall be a citizen of the state designated by the Governor as his responsible representative to serve at the pleasure of the Governor. The commissioners so appointed shall be paid no compensation. They shall be reimbursed for necessary expense incurred in the performance of their duties.