'In connection with the operations described in General I. Hamilton's despatch dated 11 December 1915.'
Source: London Gazette
Date: 28 January 1916

'Operations from 20th September 1916 to 26th February 1917. Officer Commanding 1st Brigade N.Z.F.A. This officer efficiently commanded his Brigade during several important advances made by our infantry and earned the commendation in common with the other Group Commanders, of all C.R.As, commanding groups to which his Brigade was attached when at the Somme: this Brigade made five advances during the time they were in action. During the period we held the line at Armentieres and Fleurbaix this Brigade never failed the render good service to the infantry to their raids. Lieut Colonel Symon is especially good as an organiser and administrator and it is due chiefly to him that the 1st Brigade has attained such a high state of efficiency.'
Source: London Gazette
Date: 4 June 1917

'(i) Chunuk Bair & Lone Pine 8/9 Aug 1915. Previously commanded the 1st Battery which was trained by him and did most excellent work ever since the end of April. During the operations from 6/14 Aug, this battery has done most excellent work both in bringing fire to bear on Chunuk Bair and also in assisting in the attack and capture of Lone Pine by 1st Aus Div. Lieut Col. Symon has on all occasions fought his battery with ability & have much pleasure in bringing to notice his good services. (ii) Sept-Dec Gallipoli Peninsula 1915. This officer?s name has already been submitted for good work.'
Source: London Gazette
Date: 14 January 1916

'For distinguished and gallant services and devotion to duty. Field Marshal D. Haig. Commander in Chief the British Armies in France, despatch dated 9th April 1917.'
Source: London Gazette
Date: 1 June 1917