Oh, yes he is. The age requirement applied only to married women, but Anarchist Annie was not validly married to BHO, Sr., because he already had a wife back in the old country. Thus, she was fully able to pass her citizenship on to her little bastard.
Of course, it's all irrelevant anyway, since he was born in Honolulu, and the two citizen parent argument will prove to be a non-starter in the Supreme Court, if it ever gets there.
It's a lost point when the best argument for Obama's U.S. citizenship is based on Obama's papa being an unproven bigamist.
To prove he was legally married to Kezia would require a marriage license. Should they obtain one to prove he was married to Kezia, it will then prove that Obama Sr. was NOT married to Stanley Ann, and that Barry, is in fact, a Bastard. That might do as much political damage as proving he wasn't born in America.
Of course, it's all irrelevant anyway, since he was born in Honolulu, and the two citizen parent argument will prove to be a non-starter in the Supreme Court, if it ever gets there.
He and his legal advisers have never behaved like he was born in Honolulu. They have shown one peculiar document after another and argued that they don't have to show them. Not the behavior of a man who can easily prove something. I have no doubt that Obama's birth is REGISTERED as having occurred in Honolulu, but if it turns out that the document behind the whole mess is an affidavit of "at home birth", it is not going to fly very well with the American Public.