Mo. Rev. Stat. § 90.550
Said directors shall immediately after their appointment, meet and organize by the election of one of their number president, and by the election of such other officers as they may deem necessary. They shall make and adopt such bylaws, rules and regulations for their guidance and for the government of the parks as may be expedient, not inconsistent with sections 90.500 to 90.570. They shall have the exclusive control of the expenditures of all money collected to the credit of the park fund and of the supervision, improvement, care and custody of said park. All moneys received for such parks shall be deposited in the treasury of said city or town to the credit of the park fund and shall be kept separate and apart from the other moneys of such city or town and drawn upon by the proper officers of said city or town upon the properly authenticated vouchers of the park board. Said board shall have power to purchase or otherwise secure ground to be used for such parks, shall have power to appoint a suitable person to take care of said parks and necessary assistants for said person and fix their compensation, and shall have power to remove such appointees; and shall in general carry out the spirit and intent of sections 90.500 to 90.570 in establishing and maintaining public parks.
§ 90.550, RSMo