765 ILCS 45/6

Whenever it shall appear that the records or any part thereof of any county in this state have been destroyed by fire or otherwise, so that a connected chain of title cannot be deduced therefrom, copies, duly certified by the proper officers, of all deeds, patents, certificates, plats and legal subdivisions of lands in such county in the custody or control of any officer of this state or the United States, may be recorded in the recorder's office of such county; and the record so made shall have the same force and effect as the record of the originals of such instruments.