It was be against Hawaiian law to use the name Barack on the birth certificate if he was born in Hawaii or the alleged parents registered him there.
The name Barack was against the law in 1961.
gosh..It would be..
Even if the law was still on the books in 1961, which you haven't proven, (find an official code book from the era that shows this, not a wikipedia entry), such a law would not have been enforceable under the Due Process Clause of the 14th Amendment after the Pierce/Meyer line of cases and their progeny. Attempting to assert anything to the contrary is absolutely laughable.
Are you really suggesting that the government actually had the power to prohibit you naming your child whatever you wanted in Hawaii? Really?