Spitfire XIV & XIX pilot's notes query

Good evening all,

I have a set of original Spitfire XIV & XIX pilot’s notes with some interesting markings on the cover (see attached)

Searching the internet would suggest the name is Squadron Leader Banning-Lover and I have found a potted hsitory of Spitfire PS908 –

“PS908 PRXIX G66 1PP Benson 24-4-45 542S 17-6-45 8OTU 18-11-46 transfer Bomber Command 18-9-50 AGT VA 13-7-51 nea 7-10-53 sold scrap Lawsons Metals 1-10-54”

(quoted directly from – http://www.airhistory.org.uk/spitfire/p091.html )

However I am struggling to understand how the two are connected, plus no idea how 231 PROCU fits into the equation?

Can anyone help clarify?

Regards,
Jon