Appo's father was a Chinese immigrant from
Ningbo City with various names ("Quimbo Appo" or "Chang Quimbo Appo", Chinese name "Lee Ah Bow"), while his mother, Catherine Fitzpatrick, was
Irish American. His father spent time in prison, while his mother and sister died enroute to California to visit her brother. His mixed ancestry led Louis Beck to present Appo's story as a warning against
miscegenation in his 1898 anthropological study, ''New York's Chinatown''. ==Incarceration and crimes==