If you're feeling brave, just type "Stanley Ann Dunham" into a Google image search. NSFW, so be warned.
Yes, they are the real deal.
Those photos were not Stanley Ann Dunham. Some were from an “exotic model” magazine published in 1958 when SAD was a VERY homely junior in high school; photos of her in that year are on FR. Plus when the two faces are lined up - nope, different person.
Plus, SAD ain’t his mother anyway.