Mezue ahịrịokwu na-esonụ: Gilmour sonyeere Lovat Scouts na 1937 ebe o nwetara ọrụ ya. Ọ sonyeere ndị Seaforth Highlanders na 1939. N'agbata afọ 1942 na afọ 1943, ọ nọ na 2nd Seaforth na 51st Highland Division nke 8th Army na North Africa campaign. E nyere ya ihe nrite Military Cross na Agha nke Abụọ nke El Alamein, na Bar na MC maka ngosipụta nke obi ike n'ihu ndị German Afrika Korps na
Agha nke Wadi Akarit. O keere òkè ná mwakpo a wakporo Sicily. Ọ laghachiri United Kingdom na 1943. Site na 1944, o jere ozi na Normandy, Netherlands, na Germany ebe ọ natara Cross Service Cross site na United States.