Before the war Thomas Griffiths of Bangor (born 1881) worked as a stonemason. He attested for military duty in November 1915 and was called up on 13 November 1916. He served with the 250th Railway Company of the Royal Engineers until he was demobbed on 2 May 1919, seeing action in France. After the war he worked on the railways in North Wales: he died in 1947. These are the certificates that came from his war service: his certificate of employment during the war, certificate of demobilization, demobilization account and certificate of identity.