Car Alignment

[Brakie]

When making up a train, ( in steam days) I can belive that for a pasenger train all of the B ends will face the locomotive if there is an observation car on the end.
Drawings I have seen of brakemen on old time freight cars (vertical brake shafts) show all B ends aligned similarly.
I can't believe that freight cars are always aligned B to A end, due to the way they would be switched in classification yards.
Does any one know if there is a preferred alignment when making up either a freight or passenger train. For example, if a Pullman from Kentucky were added to a train from Cincinnati, would its B end couple to a B or an A end on the receiving train.
i.e. are both freight and passenger cars lined up at random or is (or was) there a system to tell brake operators where to go?

Paul

Remember electric cars are powered by coal.

Paul,It doesn't matter how the brake wheels are aligned..
As Mike pointed out it would take to much time turning cars-freight or passenger.

Now back in the day of hand braking a train to a stop a passenger car had brake wheels on both ends and the freight brakeman could see the brake wheel on the freight cars because the brake wheels was mounted on a shaft that stuck up.