Arthur enlisted into the University and Public School Battalion from the Cadet Corps of the North Eastern County School, and went to France in 1915—a month before he was 19—where he remained until March 1917. He was through the first battle of the Somme, and was in the beginning of the first push north of Arras. In France Lieut. Burn was attached to the Royal Engineers, and afterwards to the Royal Fusiliers, until he got his commission.
Arthur had been asked to help stem a German advance. In the retreat towards a shallow trench he was heard to say "I've got one (been shot),can you do anything for me?" In a letter to his mother Captain Cardew wrote that Arthur died almost immediately, without pain, and about how 'his conduct that day was magnificent, and I could only wish that he had come through it to receive the honour he deserves'.
Teesdale Mercury-17/04/1918: News item: Death in Action
2nd Lieutenant Burn killed in action 27.03.1918 - DLI
Teesdale Mercury-26/03/1919: In memoriam
Son of Thomas and Sarah Burn.
Arthur had enlisted directly upon leaving the North East Counties School. He was described as being thoroughly reliable and capable of leading his men anywhere.
Teesdale Mercury-17/04/1918: Roll of Honour Notice