Upon the filing of such complaint and bond, the court shall enter an order for attachment against the owners of such water craft, directed to the sheriff of the county, or other officer if the sheriff is disqualified or unavailable to attach such water craft. Such owners may be designated by their reputed names, by surnames, and joint defendants by their separate or partnership names, or by such names, styles or titles as they are usually known. If the name of any owner is unknown, he or she may be designated as unknown owner.
735 ILCS 5/4-206