Hello all...sorry I've been bedded down poorly and missed a number of threads...this being one!

To address a number of points...
The armoured car...I think this is a Humber mk 4, given the shape of the front end, mud guards and weaponry. These were used by the Reconnaissance Corps.
The chap in the Khaki Drill Tunic and shorts...Is this the
same chap as in the other photos??? His nose looks decidedly thinner in the KD!! This uniform was worn widely by officers in base areas. I have several examples. They were worn from the Middle East through to the Far East. Dark hose are OK, and could be private purchase. I cannot make out the cap badge, but it is certainly not RAOC, nor is it Recce Corp. The hat is a Service Dress Cap. A version was worn by other ranks up until around 1940/1. After that officers and CMP were the only ones who continued usage.
The cap badge on the chap in Battledress (BDs) is the WW2 version of the badge kindly put up by Anne. It is somewhat wider at the bottom. This is an "Other Rank" and not an officer...He is wearing the earlier (though not exclusively early) 37pattern BD
RAOC and Recce Corps would be supplemental to any "teeth arms" at the front. If a unit is in a forward battle area there would be at least triple the amount in support. It was said that for every front line infantryman, there would be 3 in the rear supporting him.
For example an Infantry Division in 1944 would consist of three brigades of three battalions each of Infantry. These are then supported by....
Three Field Regts of Artillery
One Anti tank Regt
One Light Anti Aircraft Regt
Royal Engineers
HQ Div Engineers
Field Park Engineers
Two Field Companies
One Bridging Platoon
HQ Royal Army Service Corps
Four Field Companies
HQ Divisional RAOC
Ordnance Field Park
Mobile Laundry and Bath Unit
Divisional REME
Three Infantry Brigade Workshops
RAMC
Three Field Ambulance
Two Field Dressing Stations
Divisional Signals
Postal Unit
Provost Coy CMP
Recce Regt
Motor Machine Gun Regt
Total strength of one Division 18347 officers and men. Of these around 3500 are infantry.
The last photo from Rena is of a chap from Royal Army Service Corps.....

I probably missed some points....and sorry if I've banged on a bit here!!!
