Section 336.3-301 - PERSON ENTITLED TO ENFORCE INSTRUMENT"Person entitled to enforce" an instrument means
(i) the holder of the instrument,(ii) a nonholder in possession of the instrument who has the rights of a holder, or(iii) a person not in possession of the instrument who is entitled to enforce the instrument pursuant to section 336.3-309 or 336.3-418(d). A person may be a person entitled to enforce the instrument even though the person is not the owner of the instrument or is in wrongful possession of the instrument.