Any members of subordinate granges of the Patrons of Husbandry, not less than 5, located in any county or in adjoining counties may unite and be known and designated by some especial name as a council of granges of the Patrons of Husbandry, and may, as such, elect trustees as provided in this chapter. The trustees shall have all of the powers and privileges in respect to the property of the council of granges that are conferred by this chapter upon the trustees of a subordinate grange.