[Para-Ord.45]

Could it be "Filed" pertains to The Certificate of Hawaiian Birth program. For births prior to 1972, a Certificate of Hawaiian Birth was the result of the uncorroborated testimony of one witness and was not generated by a hospital. Such a Certificate could be obtained up to one year from the date of the child’s birth. http://hawaii.gov/health/vital-records/vital-records/hawnbirth.html

[mojito]

Yes, your explanation seems a likely one.