A library in Penarth in the Vale of Glamorgan is helping to piece together the stories of locals who died in the First World War.
It's estimated over 300 soldiers from Penarth died on the battlefield.
Marcus Payne, the local librarian says his research allowed him to uncover a lot of personal detail about the individuals who were injured or died during the war.
4 August marks one hundred years since the outbreak of World War One.
Watch ITV Wales at Six tonight for the full report.
People across Wales are switching off their lights for an hour this evening and lighting a candle of remembrance.
ITV Wales correspondent Richard Morgan writes about his experience of researching the stories behind those killed in the Great War
All in one place: See some of ITV Wales's reports marking the centenary of the outbreak of the First World War here.