The county may receive donations and bequests of either money or property for the purpose of establishing and maintaining such youth center. The board of county commissioners shall make all regulations necessary for the supervision and conducting of said youth center, and may employ a supervisor, or supervisors, and such other assistants as may be necessary to properly care for and manage said youth center and recreation grounds. At any time after a county youth center has been established as authorized by Kan. Stat. Ann. § 19-3901, the board of county commissioners may, by resolution, appoint a board of directors of three (3) or five (5) members, to supervise and manage such youth center. The members of the board so appointed shall be residents of the county, shall be persons other than county commissioners, and shall serve at the pleasure of the county commissioners. The said board of directors may be vested with all of the powers relating to maintenance and supervision of the youth center, or such supervisory powers, as the county commissioners may, by resolution, delegate; and the said board of directors may exercise all powers so delegated.