Mississippi Code Title 89. Real and Personal Property § 89-12-16

(1) All tangible personal property or intangible personal property, including choses in action in amounts certain, and all debts owed or entrusted funds or other property held by the federal government, or any federal agency, or any officer, or appointee thereof, shall be presumed abandoned in this state if the last known address of the owner of the property is in this state and the property has remained unclaimed for five (5) years.

(2) This section shall apply to all abandoned property held by the federal government, or any federal agency, or any officer, or any appointee thereof, on July 1, 1991, or at any time thereafter, regardless of when such property became presumptively abandoned.