53 Pa. Stat. § 24193
If the city or borough council or township supervisors or township commissioners or the county commissioners shall determine that the power to equip, operate, and maintain parks, playgrounds, playfields, gymnasiums, public baths, swimming pools, or recreation centers shall be exercised by a park board or recreation board, they may establish, in said city, borough, township, or county, such park board or recreation board, which shall possess all the powers, and be subject to all the responsibilities, of the respective local authorities under this act. Either such boards, when established, shall consist of five persons, and, when established in a city or borough two of the members shall be members of the school board. The members of such boards shall be appointed by the mayor of such city or the burgess of such borough or the supervisors or commissioners of such township or the commissioners of such county, and shall serve for terms of five years or until their successors are appointed, except that the members of such board first appointed shall be appointed for such terms that the term of one member shall expire annually thereafter. Members of such board shall serve without pay. Women shall be eligible for appointment. Vacancies in such board occurring otherwise than by expiration of term shall be for the unexpired term, and shall be filled in the same manner as original appointments.
53 P.S. § 24193