In every such city of the second class there shall be created a board, to be known as the Pension Board, consisting of the mayor, the city controller, the president of the city council, and two employés to be chosen by the employés contributing to the pension fund. It shall be the duty of said board to register all persons employed by the said city, and to administer the collection and distribution of the fund herein provided for, and to do such acts and make such reasonable rules in the premises as such board may deem necessary to carry into effect the provisions of this act.
53 P.S. § 23562