Mezue ahịrịokwu na-esonụ: Site na Eton, Grigg sonyeere ndị agha Britain ma nye ya ọrụ dị ka onye nke abụọ na ndị agha nna ya, ndị Grenadier Guards, na 1943 n'oge Agha Worldwa nke Abụọ (1939<unk>1945). N'oge ọ nọ na ndị agha Britain, Grigg jere ozi dị ka onye isi ndị nche na St James's Palace na Windsor Castle, Berkshire, wee hụ ihe dịka onye isi ndị agha na 1st Battalion, Grenadier Guards, akụkụ nke 5th Guards Armored Brigade nke ndị nche Armored Division, megide ndị agha German na
France na Belgium. Ka agha ahụ na-eru ná ngwụsị, ọ ghọrọ onye ọrụ nzuzo.