Ka cika wannan jumla: Da yake ta sami sukolashif don ta yi makaranta sosai, Castedo ta shiga Jami'ar California da ke Los Angeles, kuma ta kammala karatun digiri na biyu a fannin adabin Mutanen Espanya da Amirka a shekara ta 1968. An karbe ta a matsayin mataimakiyar malami a sashen adabi a Jami'ar Harvard kuma an ba ta tallafin karatu don karatun PhD. A can, ta haɗu da A. Denny Ellerman, dalibi mai digiri a Sashen Tattalin Arziki, wanda daga baya zai zama masanin tattalin arziki a MIT. Sun yi aure a Aix-en-Provence a shekara ta 1973. Iyalin sun koma Vietnam, inda Ellerman ya yi aiki a matsayin Ministan Mashawarcin Harkokin Tattalin Arziki a Ofishin Jakadancin Amurka. An kwashe Castedo da 'ya'yanta kwanaki kafin a fara
Faduwar Saigon kuma suka yi hanyarsu zuwa Hong Kong. Yayin da take zaune a kasashe daban-daban na Asiya ta ci gaba da aiki a kan takaddar digiri na biyu kuma ta sami digirin digirinta daga Harvard a shekarar 1976.