Joseph O'Brien of the 1st Battalion Royal Dublin Fusilers

My brother in law Joseph O'Brien was in the Royal Dublin Fusiliers. He was killed in action in Gallipolli aged 24 on the 30 April 1915.
Before he left to go to war, he wrote to me with news that he was going to the Dardanelles.
He also wrote to my husband from England before he went to battle.