The county commissions of all counties of the second class shall be empowered, as in sections 64.350 to 64.390 provided, to acquire real estate and other property and improve, maintain and control the same for public recreation purposes and for those purposes there is hereby created a county planning and recreation commission to consist of four members appointed by the county commission of such counties. The members of the planning and recreation commission shall be registered voters of the county and known for their intelligence and integrity and shall have resided in such county for a period of five years prior to the date of their appointment. Not more than two planning and recreation commissioners shall belong to the same political party. The planning and recreation commissioners first appointed shall hold office respectively for the terms of one, two, three or four years as indicated and fixed in the order of their appointment, and all planning and recreation commissioners after the first appointment shall be so appointed for the full term of four years. The planning and recreation commissioners shall serve without compensation. Any one of the planning and recreation commissioners shall be held to have vacated his office in event of his appointment to, or becoming a candidate for, any political office. Vacancies in the planning and recreation commission shall be filled for the unexpired term by the county commission. The planning and recreation commission shall organize by electing one of their number as president, one as vice president, one as secretary and one as treasurer. The planning and recreation commission shall be known and act by and under the name and style of “The County Planning and Recreation Commission of ______ County”.