[1] He was a student at the University of Malta when he decided to switch from the study of law to preparing for the priesthood.

[2] He continued to work the establishment of a society of priests and brothers committed to the spreading of the gospel.

[6] De Piro started off with a small community in Mdina, and died at the age of 55 in 1933 when the society was in its very initial stages.

[6] Over the years, members joined and the mission started with the Maltese emigrants in Australia and also in the US and Canada.

They are established in Australia, mainly in Melbourne and Sydney, in Peru in Arequipa and Lima, in Pakistan in Lahore and, Manila and in Bataan in the Philippines.