Missing Casualty Packs / P.4. (Cas) Branch Casualty Files, in AIR 81!!
It appears that only "selected" Casualty Packs have been released in AIR 81.
They have been indexed into the AIR 81 series, in order of their original Air Ministry Casualty Branch 'P' [Personal] file reference numbers, nothing wrong with that.
However, I see that there are gaps in the 'P' file numbers, indicating that some files are withheld, including the Whitley in which my Grandfather was an Air Observer, as the numbers are now past the original 'P' file reference.
What Public Access!! The selection process allowed by TNA to Government Departments, allows stuff to be withheld!
Mark