Prompted by a post on Facebook by the Munster Fusiliers group linking to a postcard from a member of the regiment on ebay circa 1916, who appears to be writing from the guardroom, I thought I'd take a quick look to see if he could be identified.
It looks like his number is 1673 rather than 1678 and he is Private Samuel Hughes, a dock worker from Newport, Monmouthshire in Wales. On the 1911 census he is aged 23 with a wife and 1 child living on Marion St.
Pte Hughes appears to have been killed in action in the closing days of WW1, 4th November 1918.
His death notices can be found online as can a photograph.
Pte Hughes can be found in Ireland's Memorial Records and Soldiers Died in the Great War.
No service record found online. His medal index card shows he was entitled to the 1915 Star,
British War Medal and Victory Medal.