Depends on your location, John. On a scrimmage kick, my association has B and L under the goal post, while H stays on his side and R slides over to take responsibility for L's side.
On a regular free kick, we have U with the kicker, H on R's restraining line, B on K's restraining line, and R and L deep. So, for a free kick after fair catch, the only change is that R and L start under the goal posts, and the other three officials have their normal duties. R is responsible for his upright, while L is responsible for his upright, the crossbar, and (if the kick is short of the goal post) the goal line as well.