Service Number DM2 in WW1

[corisande]

I am having trouble getting anywhere with my grandfather's WW1 record. The medal card exists, but someone checked Kew and told me that his actual service record was destroyed. He was A/Sgt William J Lyons

The medal card gives 2 service numbers
A/451950
DM2/118592

Trawling Google tells me that "A" numbers are "Special Reserve" which appears to be a sort of pre-WW1 TA

And "DM2" was "Army Service Corps Mechanical Transport Learners, discontinued 11/1916" However I do not think that is correct as there were hundreds of thousands of ASC servicemen with DM2 numbers and none with other DM numbers. I think that this stuff about DM2 is a result of "cut and paste" of one persons thoughts on DM2 on a number of other sites, including Wikipedia.

Does anyone know any more than I have on "A" and "DM2". ?

I seem to have reached a dead end as I have no idea where he served and there appears to be no way of finding out? The medal card is singularly lacking in any details!

[aland]

A = could be ; Acting

DM = Driver Mechanical Transport (ASC prefix-3), perhaps 2 is the unit number.

No there isn't much on a medal card is there?

Do you have a d.o.b. and a birthplace to go with your grandfathers service numbers?
Have you tried looking yourself,

[MylesF]

As I understand it the suffix "2" in DM2 relates to the individual being called up as part of Kitchener's second new army.