Whakaotihia te rerenga e whai ake nei: I whanau a Sir John Acworth Ommanney nana nei i hanga te Northbrook Park i te tau 1773 i Westminster, London. Ko tōna pāpā ko Rear-admiral Cornthwaite Ommanney. I uru a John ki te ope moana i te 13 o ona tau ka mahi i runga i nga kaipuke maha, a i te 19 noa iho o ona tau ka tohua ia hei Lieutenant. Ko tētahi o ana whakatutukitanga tino maumahara ko tōna tūranga i roto i te
Te Pakanga o Navarino. Ko ia te Kapene o te kaipuke Albion a i whakawhiwhia ki te mahi nui ki te wikitoria. I hangaia e George Philip Reinagle i te tau 1828 o tana kaipuke Albion i te Pakanga ka kitea i tenei hononga. Mo tenei ratonga i whakawhiwhia ki a ia he CB me te French Order of Saint Louis, te Russian Order of Saint Vladimir me te Order of the Redeemer of Greece.