Kammala jumla mai zuwa: An haifi Henry a Montevideo inda mahaifinsa Henry P ((alafox) G ((erona) Sparks (ca.1810 <unk> 18 Afrilu 1870), wani dan kasuwar Liverpool, matarsa Sarah (ca.1816 <unk> 5 Janairu 1898) da danginsa suka zauna. Don tserewa daga
rikici wanda ya barke a Uruguay, ya yi hayar brig "Bernard" (tan 240, Crawney master) kuma ya tashi zuwa Kudancin Ostiraliya, ya isa Adelaide a watan Mayu 1853. Ya sami alƙawari a matsayin mai lissafi ga Hukumar Ruwa. Henry ya halarci makarantar sakandaren John Whinham ta Arewacin Adelaide, inda ya kasance dalibi mai cin nasara, sannan ya shiga ofishin Sir John Morphett. Daga nan sai ya sami mukami tare da Bankin Kudancin Ostiraliya, sannan Elder, Smith, & Co., kuma a ƙarshe a 1880, Kamfanin Mortgage na Kudancin Ostiraliya a matsayin manajan tushe. A ranar 26 ga Yuni, 1894, an nada shi manajan Kamfanin Kamfanin Australiya ta Kudu, wanda ya gaji William J. Brind, kuma har yanzu yana riƙe da wannan matsayin a lokacin mutuwarsa.