When Hawaii issued birth certificates they notified the papers. In addition grandparents often notify newspapers of children born - even elsewhere - so other people in the area are made aware.
The key issue here is, Hawaii issued birth certificates to children not born in Hawaii. Look it up. It is a known fact. Only the long form certificate indicates where the child was actually born and if it was abroad or not. If Obama was not born in the US he did not qualify even for US citizenship much less being “natural born”. His mother was not in the US long enough after turning 14 to qualify her son. His father was not a US citizen at all.
Those are the facts of the matter.
Another interesting tidbit is the address given in the Obama's birth newspaper release doesn't match where any of the family lived. None of the neighbors have any recollection of a black kid living at that address at the time.
So what you are saying is that the Grandparents lied about where their grandchild was born back in 1961 when they notified the papers. Why would they do that?