Why a private in an Oflag?

Hi
Regarding the POW questionnaire for Albert Leonard Lockwood below, any idea why he would have spent almost two years in an Offlag when his rank is private?

Thanks
Steve

 

Batman?

 

I think they were called orderlies and typically 6 officers were sharing one orderly and the service, like cleaning the room, making tea etc.
Stefan.

 

Thanks all. He's entered he was working in a salt mine, then factory during his time there, so I guess he must have been doing the orderly work on top.

 

Similar to my great grandad - started off down a salt mine in Stalag IXC then to a series of officer camps: Oflag IVB, Oflag XXIB, Stalag Luft III where he was an orderly, then Stalag VIIIA where he worked in a coal mine and then moved West to Stalag XIB where he was liberated.