I will go over to Mikra for you first thing tomorrow.
For a potted history of the Salonika campaign, see http://www.1914-1918.net/salonika.htm
An armistice with Bulgaria came into effect on 30 September 1918, so the war down here ended a month or so before Amos died. It is possible he was wounded during the last great push into Serbia and succumbed later in hospital here, but I would think he most likely died of disease - malaria, especially, being particularly virulent here in those days. Having said that, looking through some of the other post-armistice burials at Mikra (and there are many, right through to 1920), most seem to have died of pneumonia.
If I find anyone at the CWGC office at Mikra, I'll ask if they have any further information on Amos for you.
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