O'Brien, J. M. 'Catholics and politics in the 1860s: An examination of events preceding the bitter sectarianism of 1868-70'. Thesis Box 113 (MS 6265) Unit ID: 373
O'Connor, J. G. Address. Given to O'Farrell in the 1960s by Shiela Fitzpatrick, a descendent Box 113 (MS 6265) Unit ID: 376
O'Connor, J. G. 'A short biography'. Reprinted from The Age, 30 January 1905. Given to O'Farrell in the 1960s by Shiela Fitzpatrick, a descendent Box 113 (MS 6265) Unit ID: 375