How do you obtain a copy of a deceased grandfather's naturalization certificate?
To obtain a copy of a deceased grandfather's naturalization
certificate contact the US Citizenship and Immigration Service to
obtain the appropriate form, and file it with proof that the
grandfather is dead, and the required fee. Proof of death can be an
obituary, a photo of a grave stone, or a death certificate. Anyone
who would be over 100 years of age is presumed to be dead.
Be sure the request copies of the entire Naturalization File,
since the Certificate contains little useful information, but the
application for Naturalization can be very informative.