His elevation to the episcopate saw him distinguish himself in cholera epidemics when he tended to the ill while also remaining a strong advocate for the poor of his archdiocese.

[2] Dusmet was baptized just hours after his birth in the archdiocesan cathedral as "Giuseppe Maria Giacomo Filippo Lupo Domenico Antonio Rosolino Melchiorre Francesco di Paola Benedetto Gennaro".

It was around this time that the Dusmet's moved to Naples and his father made him return there in 1832 since he feared exposure in the convent would mean his son would harbor the desire to follow an ecclesial path.

[2][1] In 1845 he began serving as an aide to the abbot Carlo Antonio Buglio and travelled with him as the latter made visitations to the Caltanissetta and Catania convents.

[1] He was appointed Archbishop of Catania in 1867 and he received his episcopal consecration on 10 March in the Basilica di San Paolo fuori le Mura in Rome from Antonio Saverio De Luca.

[3] Dusmet was close friends with the fellow Sicilian cardinal Giuseppe Guarino and he knew also Giuseppina Faro.

[1] Cardinal Alfredo Ildefonso Schuster – future Blessed and a Benedictine himself – unveiled a monument dedicated to Dusmet in Catania in 1935.

The Congregation for Rites validated the two processes in Rome in a decree issued on 17 March 1954 and the cause passed three bodies for approval.

The confirmation of his life of heroic virtue on 15 July 1965 led to Pope Paul VI naming Dusmet as Venerable.

The miracle leading to his canonization was the cure of Salvatore Consoli (18.02.1886–16.11.1971) who fell from a staircase aged 51 and contracted high fevers and acute spinal pain.

Consoli's condition worsened but appeals were made to Dusmet for healing – the pain ceased and his fever disappeared with the spine restoring itself.