Rubuta ci gaba don wannan sakin layi - An haifi Fox a Derby a Derbyshire a 1843, ɗaya daga cikin yara shida da aka haifa wa Marianne "née" Strutt (1814<unk>1898) da Douglas Fox (1798<unk>1885), alƙali da likitan tiyata. Ya yi karatu a Rossall School da Brighton College kafin ya shiga soja. Fox ya fara aikinsa na soja yana aiki tare da 100th (Prince of Wales's Royal Canadian) Regiment of Foot daga 1863-1875, wanda aka inganta shi zuwa Lieutenant a 1865 da Kyaftin a 1871. Tare da rundunarsa ya ga sabis a Malta. Bayan an canza shi zuwa 42nd (Royal Highland) Regiment of Foot (da 'Black Watch') ya kasance tare da rundunarsa a Aldershot a 1881 kafin ya ga sabis a cikin Yaƙin Masar
inda aka raunata shi a lokacin yakin Tell El Kebir a 1882. A cikin zanen Alphonse-Marie-Adolphe de Neuville "The Storming of Tel el Kebir" (1882) an nuna Fox a hagu da rauni a kafada kuma wani soja ya riƙe shi, yayin da a zahiri an harbe shi a cinya.