Something I forgot.  How did Obama go to Pakistan in 1982?  He couldn't have gone with an American Passport as Pakistan wouldn't allow Americans in at that time.  What country did he use?  Did he have dual citizenship or Indonesian citizenship?  Indonesia wouldn't allow it at that time.  Many questions not answered.  That is why the birth certificate questions.  That is why the questions on how he paid his way through college.  That is why the questions on how and even why he went to Pakistan.  Who want's to go there unless it is work related?  It is definately not a tourist destination. 
I can't help you with that one.  I have no access to the kind of records or databases that would shed light on that issue.  It's clear that many files have been scrubbed in connection with Obama and the Dunham family.  You can't take anything for granted in investigating Obama.  I heard a caller on talk radio say that the first edition of 
Dreams From My Father (1995)  named his mother as "Shirley Ann Dunham" and I immediately  tried to obtain a copy of the 1995 edition and I followed up on  "Shirley."  Well, copies of the 1995 edition are going for thousands of dollars!   

I have not been able to confirm that Obama identifies "Shirley" as his mother in the first edition of 
Dreams From My Father, although in the  second edition (2006) he  does name his mother as "Stanley Ann."   Obama's other book, 
Audacity of Hope, makes repeated references to his "mother", but does not refer to her (or to his grandparents either, for that matter)  by name at all and there is no listing for "Dunham" in the index.   A number of newspapers, authors and other on line sources  do indeed list "Shirley Ann Dunham" as  Obama's mother. 
Audacity of Hope  is dedicated to his maternal Grandmother and his mother, but neither is named in the book and neither appears in the index. (!)  Obama  describes his mother and her influence on his life at pages 29-30, 66,  and 202-208.   Interestingly enough, Michelle Robinson's family members are identified by name, but  are not listed in the  book's index.   
If you read, annotate, cross-check and cross-reference D
reams From My Father and 
Audacity of Hope, it's obvious that they were expertly written, organized  and published for the express purpose of sewing as much confusion and disinformation as possible.  Each book contradicts the other as to important facts relative to the Obama history.   Dreams does not have an index and does not have a single complete date.  
Audacity of Hope, has  two complete dates:  Sept. 11, 2001  and  January 4, 2005 (page 15), the date he was sworn in as a member of the U.S. Senate.      
I would not have thought  such an obvious and transparent fraud as set forth above would have been possible.    More and more I question whether the people who give Obama's books such  glowing reviews and attribute such super human powers to him  have ever even bothered to read  his books.   It is horrifying to realize that this kind of obvious  hoax can be completely unchallenged.