Hi Chris,
It's looking promising that your relative Samuel was with the Grenadier Guards but I fully understand you need to be 100% sure but hey all is not lost.
The Commonwealth War Graves Commission (CWGC) prior to completing the details on the deceased soldiers would send a verification form to the next of kins requesting further information on the soldier eg. address, age and the names of the next of kin. If this form wasn't completed and returned only the basic military details were included on the CWGC.The reasons varied why this verification form wasn't completed but most likely it would be that the next of kins were deceased or didn't receive or know about the form. If Samuel wasn't married and his parents were deceased then I would think this was the reason his details are only basic.
I think the Guard's Regiments kept their records at their military barracks so they may well have some information on both the Samuels you are interested in. I suggest you maybe ring and enquire if they do keep any records and what is the procedure to obtain them. If they do have the records then for sure they'll have basic information on age, address and next of kin which will confirm your relative.
Check out this website for contact details but I've cut and pasted the contact details for you here anyway.
www.theguardsmuseum.comABOUT THE MUSEUM Aims & Ideals Friends of the Guards Museum Family Research Links
FAMILY RESEARCH
Increasing numbers of people are undertaking major research to find out more about their relations who have served in The Guards regiments. Many of these people ring the museum to ask us to search the archives for details about these former soldiers. Unfortunately, we do not hold any service records on individuals as these are still maintained by the Regimental Headquarters (RHQ) of each regiment.
Those seeking information should write to the relevant RHQ directly. All five RHQs are based in Wellington Barracks the address of which is as follows:
Wellington Barracks
Birdcage Walk
London SW1E 6HQ
Alternatively you can ring them on:
Grenadier Guards - 020 7414 3284
Coldstream Guards - 020 7414 3246
Scots Guards - 020 7414 3324
Irish Guards - 020 7414 3297
Welsh Guards - 020 7414 3291
Please understand that Regimental Archivists work on a voluntary basis and are therefore a limited resource. A written application might prove a more effective approach.
I'm not 100% sure but It looks promising that they do hold records so good luck and please keep me updated. I'll wait for your reply before looking at the involvements of any Regiments during the war.
I'll look into the Elijah Capewell you mentioned and get back to you.
Regards
Adrian