You're right, the two newspaper announcements prove nothing, however they do support the COLB, and Barry's own book.
All three list Barry's father as Barack Obama. Let's just agree with the leftists contention that the they are factual. They all indicate Barry Soetoro aka Barack Hussein Obama is NOT a NATURAL BORN CITIZEN.
You can not bring that up, you must say he was born in Kenya, else the truth may come out.