Missouri Revised Statutes Title XXXI. Trusts and Estates of Decedents and Persons Under Disability § 473.717. Supposed decedent substituted for administrator, when--effect on actions, judgments

1. After the revocation of such letters of administration as aforesaid, the person erroneously supposed to be dead may, upon suggestion of said fact, filed of record, be substituted in all actions brought by the administrator of his estate, whether prosecuted to judgment or otherwise. He may, in all actions previously brought against his administrator, be substituted as defendant, on proper suggestion, filed by himself or by the plaintiff therein, but he shall not be compelled to go to trial in less than three months from the time of the filing of such suggestion.

2. Judgments recovered against the administrator before the revocation of his letters, as aforesaid, may be opened, upon application by the supposed decedent, if made by affidavit, denying specifically, on the knowledge of the affiant, the cause of action, or specifically alleging the existence of facts which would be a valid defense; but if within said three months, such application shall not be made, or, being made, the facts exhibited shall be adjudged an insufficient defense, the judgment shall be conclusive to all intents, saving the defendant's right to have the same reviewed, as in other cases, by appeal or by writ of error, as now provided by law. After the substitution of the supposed decedent as defendant in any judgment, as aforesaid, such judgment shall become a lien on his real estate situate in the county for which the court is held, and shall have the same force and effect as if said action had been originally instituted against said supposed decedent.