People   (Re-unions, trace old friends and relatives.)

You can try -FORCES WAR RECORDS-
There are at least two records showing -
J CLARK 2974241 Company Sergeant Major 1940
J CLARK 2974241 Warrant Officer 2nd Class 1941
Both Argyll & Sutherland Highlanders
I dont know what they will charge to let you have the records but it maybe worth asking , they may have more records but these are the two that show up with a quick search
Good Luck
I have just googled his name and there is a newspaper article (dated 3rd January this year) about a Lt. James Clark whos ID Bracelet as just been found , but the ID number is different the number is 202637, and I have looked at that on the Forces Records site and is as the following
J CLARK 202637 Quartermaster Lieutenant 1944 Argyll & Sutherland Highlanders
It seems strange that he is not on the war dead site, even if his body and not been found he would have been presumed dead and commemorated as such??? The ID Bracelet just as the initial J , how would they know that means James??
But it looks like there are proffessional people looking into it so I dont think we have much chance, but good luck all the same and it would be interesting to know the out come