None of them say where the birth occurred or name the child, that's part of the point. If the announcement originated from Obama's mother or grandmother, as Wonder Warthog had suggested in reply 103, then don't you think they would include that? The notices obviously originated from a single source, probably the agency that records live births. That doesn't necessarily disprove the Birther conspiracy theory of Obama being born overseas and someone registering it for him but how likely is that? If he really was born outside the U.S. what possible motivation would there be for his grandmother to run out and file for a birth certificate within hours of his delivery?
Not probably. Certainly, as the page with teh announcements carries the heading, "Health Bureau Statistics."