"200 souls on board"
I haven't heard that expression for a long time now. I even feel quite nostalgic.
The world went over to POB (Persons on Board) from SOB (Souls on Board) donkey's years ago. I believe it had a lot to do with the fact that a certain influential religious grouping in the world objected to the use of the word "souls" since they didn't have any (or something like that).
No doubt someone will illuminate us in due course.