Mezue ahịrịokwu na-esonụ: A mụrụ O'Brien na Jersey City, New Jersey, na March 7, 1879. Ọ gara ụlọ akwụkwọ ọha na eze nke Jersey City, Academy nke St. Aloysius Grammar School na Saint Peter's College. Ọ gụsịrị akwụkwọ na Mahadum Fordham. Ọ gụrụ akwụkwọ iwu na New York Law School, a nabatara ya n'ụlọikpe ma bido ọrụ na Jersey City. Ọ bụ onye ọka ikpe nke ụlọ ikpe mpụ nke abụọ, ma bụrụ onye nduzi nke nchekwa ọha na eze nke Jersey City site na 1917 ruo 1921. Ọ bụ onye nnọchiteanya na
Nnọkọ Mgbakọ Mba Nile nke Democratic na 1920.