From the age of seven, Nicola knew that he wanted to be a priest, and was drawn to religious life. Though his family was initially opposed, they allowed him to start studying with the Camillians at age 12 in 1955. He joined the Camillians (Order of the Clerks Regular, Ministers to the Sick) in 1961, studied at the Gregorian University in Rome, Italy making his perpetual vows on 28 May 1964, just a few days before his death. His personal piety, his Marian devotion, and his desire to become a Camillian priest was an inspiration to all who knew him.
- 12 June 1964 in Rome, Italy of cancer
- interred at Bucchianico, Italy near the sanctuary of Saint Camillus de Lellis
- “Venerable Nicola D’Onofrio“. CatholicSaints.Info. 6 July 2013. Web. 4 October 2015. <>