Before the CrashEdit
Harry had a daughter Kelsey and a wife Marie. Julian, Kelsey's lover, asked Harry for his daughter's hand in marraige. He approved and they married. But shortly after, Julian murdered and robbed Kelsey, leaving Harry feeling sad and guilty for trusting Julian.
On the IslandEdit
He followed Jessica to find The Others, and doubted her on the way, but when they got to the camp, Harry and Warlock breifly spoke.