"Negro" was certainly preferred over some other racial epithets in 1961, but if you were a White parent in 1960 whose daughter had married a very dark-skinned man from another continent, you might want to avoid using that word to describe your grandchild and go with "African" instead. It would be easier on the child to have an "exotic" background than to be just another American Negro.
The only “otherwise” is another pre-1964 Hawaiian birth certificate with “African” as a racial designation on it.
As I said, I certainly can't get one of those. In any case, the set of children born in Hawaii who had an African parent from Africa was probably very, very small, so the number of birth certificates you would find (if you could find any birth certificates of that era at all) would also be very, very small.
“Negro” was certainly preferred over some other racial epithets in 1961,
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It was not an epithet. It was an accurate descriptive term in 1961.
As a comparative example, “Asian” was not used either.
“African” and “Asian” are decriptions of continents in 1961, not race.
I repeat: until I see a pre-1964 Hawaiian birth certificate with “African” as a racial designation, I deem Obama’s 2007 birth certificate to be fake, fabricated by someone like yourself who has no idea about 1961 American culture.