Well I was speaking in terms of all types of citizenship as in the broad category of either naturalized or natural born.
Further, since he was born in Hawaii he was NOT born abroad, thus the rule you are citing does NOT apply. He was born on US soil (Hawaii was a state at the time) and had at least one parent who was a US citizen at the time. Age of the parent is only a factor when born abroad according to the law at the time.
re: my postst above, *I* am the idiot. The statute that applies reads: 8 § 1405. Persons born in Hawaii
How Current is This?
A person born in Hawaii on or after August 12, 1898, and before April 30, 1900, is declared to be a citizen of the United States as of April 30, 1900. A person born in Hawaii on or after April 30, 1900, is a citizen of the United States at birth. A person who was a citizen of the Republic of Hawaii on August 12, 1898, is declared to be a citizen of the United States as of April 30, 1900.