Accessory open or enclosed storage of oil, gas, ranch or farm materials, products or equipment, accessory farm buildings, including barns, stables, sheds, toolrooms, shops, bins, tanks and silos, and other accessory buildings and uses including, but not limited to: accessory private garages, servants' quarters, guest houses, swimming pools, home barbecue grills, customary church bulletin boards or identification signs not exceeding thirty (30) square feet in area for permitted public and semi-public uses, accessory storage, and accessory off-street parking and loading spaces.