Examines the life of Mary MacKillop, an exceptionally single-minded and dedicated woman who became Sister Mary of the Cross in the Order of St. Joseph, Australia's first religious order.Examines the life of Mary MacKillop, an exceptionally single-minded and dedicated woman who became Sister Mary of the Cross in the Order of St. Joseph, Australia's first religious order.Examines the life of Mary MacKillop, an exceptionally single-minded and dedicated woman who became Sister Mary of the Cross in the Order of St. Joseph, Australia's first religious order.