According to Library of Congress authority file on 8 March 2009:
1) O'Brien, Tim, 1946-
2) O'Brien, Tim, 1947- , Ripley Entertainment VP
3) O'Brien, Tim, 1954-
In addition to the US novelist and short story writer (pictured here), there are several other authors named Tim O'Brien, as well as a musician and an illustrator: a role-playing game writer, a travel writer, a psychology writer, and a writer about Christian communities.