Annie: Oh, a washing machine! But Dean its so expensive.
Dean Proffitt: No, shit.
Travis Proffitt: Are you sure this is gonna work?
Charlie: My ideas always work. I'm gifted.
Travis Proffitt: I loved it when you glued Joey to the toilet seat.
Annie: I don't belong here, I feel it, don't you think I feel it. I can't do any of these vile things and I wouldn't want to. Oh, my life is like death. My children are the spawn of hell, and you're the devil. Oh God.
Dean Proffitt: But baby, we like you.
Dean Proffitt: This one's flat, give me another one Billy.
Billy Pratt: I only got six.
Dean Proffitt: Well, I guess we better send the ol' ball and chain out to buy us more.
Joanna Stayton/Annie Proffitt: I just... ate a bug.
Answer: This is just speculation, but since he knew what hospital she'd been in, he likely went there and asked who'd claimed her and where they lived. It wouldn't be too difficult.