Lieutenant Colonel Hugh Given Robertson graduated MB BCh from Glasgow in 1908. He was commissioned Lieutenant in the Royal Army Medical Corps on 31 July 1909. He passed the examination held in London for commissions in the Royal Army Medical Corps. Fifty four candidates competed; twenty were selected. Dr Gilbert Henry Dive MRCS LRCP of St Bartholomew's Hospital scored the highest mark of 632; Dr Robert Gale MB BCh (Glas) of Glasgow University scored the lowest mark of 505. Dr H C Robertson came 13th with 513.5 marks.
Lieutenant Colonel Hugh Given Robertson served with the British Expeditionary Force in France and Belgium. He was captured by the Germans in October 1914 and held a Prisoner of War until May 1915. He served in Mesopotamia where he was mentioned in the dispatch of Lt General Sir W R Marshall KCB, KCSI, commander-in-chief Mesopotamian Expeditionary Force. He was awarded the OBE in 1919.
The Mesopotamia despatch, which was published in the Gazette of 29 August 1918, dealt with the operations in Mesopotamia during the six months from 1 October 1917 to 31 March 1918. It gave an account of the operations on the Diala, Tigris and Euphrates and the activities towards Kermanshah undertaken to open the main trade route to Northern Persia, a district the Turks had reduced to a state of famine.
Lt General Sir W R Marshall praised his medical Department:
The high standard of efficiency displayed by all ranks of the medical service has been most gratifying to me, and reflects great credit on Surgeon General A P Blenkinsop CB, CMG, my Director of Medical Services. The health of the troops has shown marked improvement as compared with the corresponding months of 1916–1917. The sanitary organisation and administration has steadily progressed, and the standard of comfort and efficiency of the hospitals is most satisfactory. The nursing sisters have, as always, devoted themselves with untiring care and zeal to the welfare of the sick and wounded. Through the generosity and kindness of Her Excellency Lady Willingdon clubs and convalescent homes for these devoted ladies are being established at suitable centres.