[philman_36]

But the Feds didn’t require that field be coded.
And how have you come to that conclusion?

So why code it at all unless Hawaii was keeping their own statistics.
Well I'd like to see that the Feds didn't require it before I would venture to answer that question that doesn't have a question mark. (not the grammar police, just sayin'...)

It shows a “3” as the race of parents. By the Feds that means they were American Indians.
And what code key are you using to make that determination?

[4Zoltan]

Look at the 1968 tape instructions that you posted a link to earlier. Parents place of birth is not one of the fields. This is also true for the one obtained by FOIA for 1961.

“And what code key are you using to make that determination?”

Both the 1961 (FOIA obtained) and the 1968 tape instructions.