All orders made and judgments entered in an action authorized by section 2A:62-11 of this title shall be binding upon all persons included in the classification “unknown claimants” and their heirs, devisees and personal representatives, and their or any of their successors in right, title and interest. The classification “unknown claimants” shall include all persons who may, as alleged or claimed or reputed in the complaint filed in a suit authorized by section 2A:62-11 of this title, at some time claim to own the affected lands, or a part thereof, or an interest therein or to hold a lien or encumbrance thereon, whose title, claim, lien or encumbrance cannot be ascertained by a search of the title of such lands for a period of sixty years immediately prior to the commencement of suit.

L.1951 (1st SS), c.344; amended by L.1952, c. 203, p. 714, s. 1.