It's really no secret that the smartest of the Harrison boys is Abram.
He's currently attending California Western Law School, with aspirations of eventually becoming a politician. (Maybe I need to rethink that smartest comment...) In all seriousness, he's a bright kid, and started his own blog. It will mostly be about politics, with a little bit of his life thrown in. His political stances tend to be what I would call left-leaning common sense.
If you're interested, it's at http://abe-blinkin.blogspot.com/