James joined Northern Bank on 16th June 1897 at Head Office.
A transfer to Downpatrick followed in 1904.
By 1911 he has moved to Downpatrick and is boarding in house 51, Saul Street, Downpatrick, Co. Down. He is recorded as a Bank Cashier.
On ‘Ulster Day’, Saturday, 28th September 1912, a James Martin signed the Ulster Covenant at the Assembly Hall, Downpatrick.
Whilst in Downpatrick, James, aged 35, volunteered and enlisted into the Cadet Company, 19th Bn. Royal Irish Rifles as a Private with his colleague, F W Orr and an Ulster Bank, Downpatrick official named J R Buchanan was later to die from wounds in 1st April 1918 in a Red Cross hospital in Rouen.
James volunteered for the Officer Training Corps (OTC) based in Ballykinlar. Martin was Gazetted as 2nd Lieutenant into the 19th Bn. Royal Irish Rifles and later promoted to Lieutenant and Acting Captain. Later he was posted to the 10th Bn. Royal Irish Rifles and then attached to the Royal Warwickshire Regiment. He saw service in Messines on 7th June 1917.
He received a severe gunshot wound to his right shoulder.
Demobilisation came in January 1919 when he was invalided out. He was awarded the British Victory Medal and the British War Medal.
Following demobilisation, Martin rejoined the Bank on 1st April 1919 in Downpatrick.
James Martin retired on 30th June 1941 and died on 3rd May 1953. He is remembered on the Roll of Honour in Downpatrick Presbyterian Church.