<diacritize> Harper gba okun flight lieutenant ni Ojo kejila Osu keji odun 1941.11 Leyin Osu kan, won gbe lo si No. 57 Operational Training Unit RAF, ti o wa ni RAF Hawarden ni Wales, bii olukoni. <yor>Harper gba okùn flight lieutenant ni Ọjọ kejìlá Oṣù kejì ọdún 1941.11 Lẹyìn Oṣù kan, wọn gbe lọ sí No. 57 Operational Training Unit RAF, tí ó wà ní RAF Hawarden ní Wales, bíi olùkọni. 