Kammala jumla mai zuwa: An haife shi a Melbourne, Kanada Gabas, ɗan Udolphus Aylmer, 7th Baron Aylmer da Mary Journeaux, Aylmer ya yi karatu a Makarantar Sakandare ta Montreal da Kwalejin Royal Naval a Portsmouth, Ingila. Ya yi aiki a cikin 'yan bindigar Kanada a lokacin
Fenian ya kai hari kuma ya kasance Laftanar a Royal Marine Artillery. Ya shirya Richmond Field Battery a 1876 kuma ya yi umurni har zuwa Nuwamba 1887, lokacin da ya yi ritaya tare da mukamin Laftanar-Colonel.