Jack received his early education at the Good Samaritan convent school, Campbelltown, and at the Christian Brothers’ school, Lewisham, where he found the discipline hard. John Henry Kelly (1895-1983), farmer, public servant and rural-industries consultant, was born on at Hornsby, Sydney, eleventh of fourteen children of Irish-born parents Henry Edward Kelly, railway ganger and later funeral director, and his wife Mary, née Monaghan.