Manuel Gregorio Argerich was born in Buenos Aires in 1835. His brother, Juan Antonio, was born in 1840 and was, like Manuel, a key figure during the cholera and yellow fever epidemics. He helped organize the commission to organize a plan to manage the epidemic with José Roque Pérez. He was a professor of surgery and director of an orphan's home. They were descendants of Dr. Cosme Argerich.
