Passenger Train Formations

A unidentified 19in Goods, but probably No.2515, heads a mixed passenger train. At first glance the trains looks quite uniform by LNWR standards, but the first three vehicles are arc roofed and probably all 50ft by 8ft 6in. The next is a 57ft top light, followed by a 12 wheeled (presumably) diner, two more 57ft top lights, two narrow arc roofed carriages and an elliptical roof something bringing up the rear. But what exactly are the carriages and where might they be heading?

Improved Precedent No.1531 CROMWELL and Prince of Wales No.261 stand in Carlisle station with a southbound express passenger train. The carriage in the train can be identified as:
1) WCJS D.26 50ft sleeping composite, one of ten arc roof corridor composites which went through a major rebuild in 1908.
2) WCJS D.65 57ft corridor brake third built in 1913.
3) a corridor composite of some sort, probably WCJS.
4) LNWR 50ft brake to D.375
5 & 6) probably WCJS 8ft 6in wide arc roof corridor carriages
7) LYR D.91 56ft four compartment brake third, six examples of which were built and four of those were used in Ambulance Trains from 1915.
8) 50ft arc roof.
9) 65ft 6in clerestory  dining saloon with end kitchen.

The date must be between October 1921 (when the Prince of Wales was built) and about 1923 (no LMS insignia visible anywhere), but what was the train and where was it heading? The headlamps are express passenger, so it is unlikely to be empty stock, but the mix of sleeping and dining facilities, with van in the centre of the formation, plus that LYR ‘bogie van and third’ is curious.

Illustrations and captions by Mike Williams