He would not have served overseas with 5th Reserve Battalion.All its 10 fatalities in'Soldiers Died'are men who died of disease or accident in the U.K.between 1915 and 1918.He would have been sent to one of the several battalions on active service overseas.
Thanks for the information. I have his service number and know he joined when he was 18 in 1916,he lived near Maidstone, Kent. Im guessing he may have been called up. At present there is little else I know other than I could trace no records at kew, but was told it may be easier to follow a trail back from his medals.