The rectors, wardens and vestry being the trustees of each Episcopal church may be chosen at such times and in such manner as may be in conformity with the rules and usages thereof. Each such church heretofore or hereafter incorporated may take by purchase, devise, gift or otherwise and may forever hold any lands intended to be used for cemetery grounds or burial purposes, subject to the provisions and restrictions of subch. II of ch. 157; and any such church, by its trustees, officers or agents, who shall hold the temporalities thereof, may convey them with or without consideration to the trustees of the funds and property of the Episcopal church, however called, acting within this state, to be held, sold or conveyed according to the direction of the diocesan convention or council of the Episcopal church in this state; provided, however, that the trustees, the rector, wardens and vestry of St. Paul’s Episcopal church of the city of Milwaukee and each and every one of them are hereby forbidden to sell, convey or in any manner transfer Forest Home cemetery in the city of Milwaukee or any part thereof to any person or persons except in the normal course of cemetery operations or in pursuance of an order of some court having jurisdiction thereof, made upon due notice granting leave to convey the same.