Barack "Barry" Obama in 6th grade at Punahou.
source
Other than the 'enrollment' of Barry Soetoro in an Indonesian school in 1968 that uses the name Soetoro - there's no evidenc what-so-ever he was adopted or that his name was ever Soetoro. As the name Soebarkah was removed from SAD's passport in August 1968, and his name was shown as Barack Hussein Obama 11 at that time...why would we assume he was ever known as Soetoro?
He attended Punahou, according to the images above, as Barry Obama. Not as Soetoro. Although Lolo Soetoro and Stanley Ann Dunham-Soetoro filed joint tax returns IN HAWAII for 1973, only one child (Maya)was claimed as a dependant.
First, thank you for reaching into your vast storehouse and promptly sharing those records and information.
...why would we assume he was ever known as Soetoro?
I do not advocate assuming anything in this regard but, for one, would like to be rid of the foreign student argument if it has no basis.
It is more a hypothesis:
Attending either or both Occidental or Columbia (in whatever sense) as a foreign student, where he would have enjoyed financial benefits courtesy of the taxpayers, would seem impossible if he used the name "O". (We believe he used that name at his high school and at Harvard Law, with the tuition at both paid by private funds.)
I understand we do not have access to school records but if there is other credible evidence of which name he used at either, then one could conclude whether there is substance to the foreign student argument.