Apcar Leslie De Vine was born in the Saint Helier parish of the island of Jersey on 22 April 1886. In 1909 he married Edith Lepine Gray in England. Prior to the First World War he served with the Royal Sussex Regiment of the British Army and was an electrical engineer by trade. He immigrated to Australia before the war. He enlisted at Randwick, New South Wales on 19 August 1914 and was assigned to the 4th Infantry Battalion. De Vine departed Sydney aboard HMAT Euripides on 20 October 1914.

De Vine served at Gallipoli and the Western Front with the 4th Battalion and was wounded several times during the conflict. During this period he was promoted through the ranks to corporal (1916), lance sergeant (1917), and finally sergeant (1918). Having served with the 4th Infantry Battalion for the duration of his service, De Vine returned to Australia on 16 June 1919.

De Vine later served with the Australian Corps of Electrical and Mechanical Engineers in the Second World War as NX9819 Craftsman Leslie De Vine. On 8 February 1943, and whilst a member of the 2/6th Armoured Regiment, Apcar Devine died due to illness and is buried at Sydney War Cemetery, Australia.