Yes, they hit the back of the head. If you known anything about baby anatomy, it's almost impossible to hit the back without also hitting the head. When you baptize by immersion, you can't do the front of the head without risking having the baby's face in the water and inhailing some, or else you'd have to hold him upside down and risk dropping the baby.
I know the bishop there and the deacon ... from the Eparcy of Parma (Ohio). Fr. Jenkins' chapel St. Therese of the child Jesus is about 5 minutes from there.