Section 4
SEC. 4. All claims for private lands, buildings, and interests therein within the limits of such military reservation not presented to the Court of Land Registration within six months from the date of the notice in the previous section provided, shall be forever barred, and the lands, buildings, and interests therein shall be deemed to be public and not private property: Provided, nevertheless, That it shall be in the power of the Court of Land Registration, on suitable application, filed within three months after the expiration of the six months first aforesaid, to allow an application and claim to be filed upon proof that the failure to file it within the six months' limitation resulted from fraud, accident, mistake, or excusable negligence.