Born: 14 June 1895, Toolamba, Victoria, Australia
Entered: 30 March 1916, Loyola Greenwich, Australia (HIB)
Final Vows 02 February 1927, Xavier College, Kew, Melbourne, Australia
Died: 16 May 1973, Xavier College, Kew, Melbourne, Australia - Australiae Province (ASL)

Transcribed HIB to ASL 05 April 1931

◆ David Strong SJ “The Australian Dictionary of Jesuit Biography 1848-2015”, 2nd Edition, Halstead Press, Ultimo NSW, Australia, 2017 - ISBN : 9781925043280
Joseph O’Callaghan educated at St Ambrose primary school, Brunswick, Vic., and was a clerk for some years before entering the Society at Loyola College, Greenwich, 30 March 1916. His first appointment was to Xavier College, 1919-21, to perform domestic duties, and he spent the rest of his life doing the many odd jobs that crop up daily in any community.
He was at Burke Hall, 1921-36; Kostka Hall, 1937-39; and at the senior school of Xavier College, 1940-72. During this latter time, he was at various times, sacristan, in charge of the
garden, infirmarian, storekeeper, refectorian, caring for the farm, and assistant procurator. For many years he kept the boys' accounts and was a model of neatness and accuracy He also organised the annual Xavier villa.
At Burke Hall he was in charge of the staff, grounds, accounts and sacristy, as well as being buyer, and helper with prefecting. He was responsible for the building of the main oval, and also helped build the oval at Kostka Hall, a few years later.
He was a faithful worker, sometimes too direct for some people, but he was determined that any job had to be completed as well as possible. He was a keen Carlton football supporter. His daily walk around Kew was a feature of his life. He would rise at 5 am, and attend Mass at 6 am, either at Xavier or in the parish church. His health had been precarious with cancer for several years before his death, which he sustained with characteristic resoluteness.