Louisiana Revised Statutes Tit. 8, § 804. Affidavit as authorization

In the absence of a formal judgment of possession in the succession of the record owner of a cemetery space or right of interment, an affidavit by a disinterested but informed person of the facts setting forth the fact of the death of the record owner and identifying the spouse and legal heirs of the decedent shall be complete and sufficient authorization for a cemetery authority to permit the use of any unoccupied portion of a cemetery space by the person or persons entitled to the use thereof.