was born in Winchester and joined Northern Bank in 1904.
Cooper was based in Grafton Street branch, Dublin when he enlisted into the 5th Bn. Royal Irish Regiment with Service Number 2033. He saw service in Gallipoli, the landing at Sulvla Bay and in the Salonika Campaign (Retreat from Serbia).
Cooper was demobilised in April 1919 and was awarded the 1914/15 Star, the British Victory Medal and the British War Medal.