Missouri Revised Statutes Title XXVI. Trade and Commerce § 411.511. Warehouseman should deliver grain, to whom

(1) The person lawfully entitled to the possession of the grain, or his agent;

(2) A person who is either himself entitled to the delivery by the terms of a nonnegotiable receipt issued for the grain, or who has written authority from the persons so entitled either endorsed upon the receipt or written upon another paper; or

(3) A person in possession of a negotiable receipt by the terms of which the grain is deliverable to him or order or to bearer, or which has been endorsed to him or in blank by the person to whom delivery was promised by the terms of the receipts or by his mediate or immediate endorser.