I whanau a Morrison i Chicago, Illinois, a i tipu ake ia i Arlington Heights, Illinois. Ko ia te tuakana o nga tamariki tokotoru; Ko tana tuahine, ko Julia, he kaiwaiata-kaiwaiata me te kaiwhakangungu puoro, a ko tana tuakana, ko Daniel, he kaiwhakahaere roopu kura tuarua. Ko tana papa, ko David L. Morrison, he kaiako puoro reti me te kaiwhakahaere roopu kura tuarua i tapaina ko te Kaiako o te Tau e te Poari Whakaakoranga o Illinois i te 2003. I haere a Morrison ki te Kura Tuarua o te Tonga, ka puta mai i te Kura Tuarua o Prospect (i mahi ai ona maatua) i te 1997. He hoa ia ki te kaituhi a Ian Brennan. He kaitakaro clarinet All-State ia i te roopu o te kura, i waiata i roto i te roopu waiata, a he kaitautoko i te kura pepade. I haere ia ki Loyola University Chicago, i reira i ako ai ia i te kaupapa nui o te whare tapere me te reo Ingarihi, i puta ia i te tau 2000.
Te Whare Wānanga o Loyola o Chicago,