Mellings received his "ticket", number 2028, on 11 November 1915 and was appointed a temporary Flight Sub-Lieutenant on 3 April 1916.
Distinguished Service Cross, 22 June 1917, "In recognition of his services on the 19th March, 1917, when he attacked a hostile aeroplane with great gallantry at heights varying from 12,000 to 2,000 feet. "
Bar to Distingushed Service Cross, 19 December 1917, "For the great skill, judgment and dash displayed by him off Mudros on the 30th September, 1917, in a successful attack on three enemy seaplanes, two of which were brought down in the sea."
Distinguished Flying Cross, 21 September 1918, "A very gallant officer who, on a recent patrol, attacked and caused to crash an enemy two-seater. Later, on the same patrol, he was attacked by four Fokkers, one of which he shot down at a range of ten yards; this machine was seen to crash. A second was driven down smoking. Since he was awarded a Bar to the Distinguished Service Cross Captain Mellings has, in addition to the above, accounted for eleven enemy machines seven destroyed, and four driven down out of control."
Also in the London Gazette of 21 September 1918 -
DECORATIONS AWARDED BY THE HELLENIC GOVERNMENT.
Silver War Medal.
Lieut. (Hon. Capt.)
Harold Thomas Mellings, D.S.C., D.F.C.
Various sources suggest his claims in the Dardenelles comprised two victories on the Bristol Scout (30 September and 12 November 1916) and four more in Triplane N5431 (30 September, 19, 25 and 29 November 1917). Claims 7 to 16 were made in Camels on the Western Front between 28 February and 22 July 1918 with No 10 Squadron RNAS/No 210 Squadron RAF.
Graeme