I don’t know about all the instances of where he had to swear to never having used another name or alias but in the case of his law license, I think the question meant had he ever been licensed under a different name.
nope
https://www.ibaby.org/savebrowseform.action
Have you ever been known by any other first, middle or last name?
My question is more a legal one. If he became Soetoro, can he reappear magically someday as Obama without legally changing it back. Is he really Obama anymore?
link isn’t working now. Was it working when you posted it?