Class "Z" in Remarks column in WW1 Service Medal and Award Rolls

[Keith Sherwood]

Just a straightforward question, illustrating my ignorance on such matters - what does the expression Class "Z" indicate in the remarks column of the WW1 service medal and award rolls?
Many thanks in advance,
Keith

[AlanBoyd]

from longlongtrail.co.uk

The card shows a reference to "A.R.Z". This is also see as "Class Z", "Cl. Z", "Cl Z AR", "Dis" and other variants, sometimes with a date. They all mean that the man was eventually discharged to Class Z Army Reserve.

Class Z Reserve was authorised by an Army Order of 3 December 1918. There were fears that Germany would not accept the terms of any peace treaty and therefore the British Government decided it would be wise to be able to quickly recall trained men in the eventuality of the resumption of hostilities. Soldiers who were being demobilised, particularly those who had agreed to serve "for the duration", were at first posted to Class Z. They returned to civilian life but with an obligation to return if called upon. The Z Reserve was abolished on 31 March 1920

[Keith Sherwood]

Thanks for providing clarity on that so swiftly, Alan!
It looks like everyone on that page enlisted or were recruited at pretty much the same time, judging by the almost consecutive numbers they were allotted.  Six out of the ten there were killed, Edwin more fortunate.  Must have a look to see where the 10th East Yorks saw action...
Keith