Rubuta ci gaba don wannan sakin layi - An haifi Joseph Johan Cosmo Nassy a Paramaribo, Suriname (Dutch Guiana), Nassy ɗan ɗan kasuwa ne mai wadata. Ya fito ne daga ɓangaren mahaifinsa daga yahudawa waɗanda suka gudu daga Spain a lokacin Inquisition, kodayake ta hanyar kakannin kakanninsa dangin ba sa bin addinin Yahudanci. A shekara ta 1919, Nassy ya fara zama da mahaifinsa, wanda ya koma New York. Ya sauke karatu daga makarantar sakandare kuma, a 1926, ya sami takardar shaidar injiniya a cikin injiniya. A shekara ta 1929, Nassy ya tafi Ingila, inda ya yi aiki a cikin shigar da tsarin sauti don kamfanin fim. A shekara ta gaba aka aika shi zuwa Paris kuma daga baya zuwa Belgium domin wannan manufar. Kafin ya tafi Turai, Nassy ya samu fasfo na Amirka da sunan Josef Nassy. Ya bayyana cewa an haife shi ne a San Francisco a 1899. Tun lokacin da aka lalata bayanan jama'a na San Francisco a girgizar kasa ta 1906
, hukumomi sun ba da fasfo ba tare da ƙarin bincike ba.