Check your dates. There’s a picture of him in school in Hawaii in December 1969 with a kid named Scott in third grade.
He would have been a little over 8 years old in that photo.
You can write to the person who was interviewed and tell her to check her dates.
In 1969 he wouldn’t have been at Punahou, he would have been at Iolani and she may not have known of him.
To the best of my knowledge his enrollment at Punahou commenced in Grade Five.