Thomas James Devlin was the son of Joseph and Catherine Devlin. Thomas and his twin brother Joseph were born on 22nd October 1897 near the village of Coagh. Thomas was one of eight children. The family moved to Cookstown after 1907 as all the children were born in Coagh. Thomas and Joseph had left school and were employed as mill workers. At the outbreak of the war, Thomas enlisted in the army at Omagh. Private Thomas Devlin was serving with the 1st Battalion of the Royal Inniskilling Fusiliers in Gallipoli when he was killed in action on Saturday 21st August 1915.

The Anzac and Suvla cemeteries are first signposted from the left hand junction of the Eceabat- Bigali Road. From this junction travel into the main Anzac area. Follow the road to Helles, opposite the Kabatepe Museum, at 14.2 kms. take a right turn at the 'T' junction and at 14.3 kms. take the left fork. After a total of 22.8 kms, take a right turn to the memorial along a rough track 500m long. The Helles Memorial stands on the tip of the Gallipoli Peninsula. It takes the form of an obelisk over 30 metres high that can be seen by ships passing through the Dardanelles.