Denis T. Hayes H.A.C. (Honourable Artillery Company) who served in Belgium, France and Italy. He is the grandfather of Geraldine Hayes. His service dates are 03/10/1916 - 09/02/1919. Prior to WWI he worked in the civil service in London and attended the London School of Economics. During WWI he worked as an interpreter - he served in the Somme and Passendale (Third Battle of Ypres, Western Front July to November 1917) and in Italy. He did a course in the School of Hygiene while in the Italian Expeditionary Force. He suffered shrapnel wounds during the war - while receiving treatment abroad on return to Ireland he was also brought to the Mater Hospital, Dublin. In the Irish Free State he worked in Customs and Excise. || British War Medal ; Victory Medal ; Manuscript letter, B.E.F. (British Expeditionary Force), France, Sunday 14 October 1917 Refers to the 'frightful rain'; remarks that the 'days of the officer (class) are over'.

Trench art (letter opener) sent to Ireland from France || || Postcard || Series of 10 postcards that together make an image, sent to Ireland from France || Front || Each postcard has a line of music, indicating a different military bugle call, and the completed image shows a uniformed bugler.

Letters Home to Dublin, from World War I, Written by Denis T. Hayes to His Brother Pat Hayes