Rubuta ci gaba don wannan sakin layi - Kakannin mahaifin Kirista sun fito ne daga dangin Cumberland na deemsters, ko alƙalai, a tsibirin Man. Daya daga cikin manyan magabatansa shi ne Fletcher Kirista, mai shiga tsakani a cikin tawaye a kan "Bounty". Fletcher yana ɗaya daga cikin 'yan tawaye waɗanda a cikin 1790, suka zauna a Tsibirin Pitcairn kuma suka kafa al'umma mai keɓewa. Mahaifin Kirista, Henry Bailey Kirista, tsohon soja na 1846 Xhosas War
, manomi ne mai cin nasara kuma dan kasuwa kuma fitaccen mutum ne na jama'a.