My confusion arises from the fact that I know that my mothers immediate family was in England at the right time, and that, even if they lived on an RAF base (as they did), the information given by the National Archives says:
The records do include
members of the armed forces on leave
civilians on military bases
Perhaps I should re-phrase my question ---does any one else have problems finding milit ryfamilies in the 1939 Register, or are the Browns just missing for some other reason?