Pedzisa mutsara unotevera: Gilmour akabatana neLovat Scouts muna 1937 kwaakawana basa rake. Akazobatana neSeaforth Highlanders muna 1939. Pakati pa1942 na1943, aive ne2nd Seaforth mu51st Highland Division ye8th Army muNorth Africa mushandirapamwe. Akapihwa Military Cross paHondo yechipiri yeEl Alamein, aine Bar kuMC yekuratidzira kumwe kushinga mukutarisana neGerman Afrika Korps pa
Hondo yeWadi Akarit. Akatora rutivi mukurwiswa kweSicily. Akadzokera kuUnited Kingdom muna 1943. Kubva muna 1944, akashanda muNormandy, Netherlands, uye kuGermany kwaakagamuchira Distinguished Service Cross kubva kuUnited States.