Probably not. But what you say makes it less likely that the document is a forgery.
If you want a forgery you probably get somebody who at least half-way knows how to do it and make it at least half-way convincing.
Doubtful that Obama or anyone in his immediate family would know where to begin or would get even as far as producing the document we're talking about.
Hell, he cant even dial an iPhone, and you think he could do this????......