| 7759 |
O'Connor, Arthur |
Mr Arthur John O'Connor |
1888 |
Backbencher |
| 8257 |
O'Connor, Terence |
Mr Terence James O'Connor |
1891 |
Law Officer |
| 2184 |
O'Connor, T.P. |
Mr Thomas Power O'Connor |
1848 |
Backbencher |
| 8105 |
O'Doherty, Joseph |
Mr Joseph O'Doherty |
1891 |
Backbencher |
| 5251 |
O'Donovan, William |
Dr William James O'Donovan |
1886 |
Backbencher |
| 5256 |
O'Grady, James |
Mr James O'Grady |
1866 |
Backbencher |
| 5262 |
O'Higgins, Brian |
Mr Brian O'Higgins |
1882 |
Backbencher |
| 5261 |
O'Higgins, Kevin |
Mr Kevin Christopher O'Higgins |
1892 |
Backbencher |
| 6372 |
O'Keefe, Patrick |
Mr Patrick O'Keefe |
|
Backbencher |
| 8088 |
O'Kelly, John |
Mr John Joseph O'Kelly |
1872 |
Backbencher |
| 8241 |
O'Kelly, Sean |
Mr Sean Thomas O'Kelly |
1882 |
Backbencher |
| 5275 |
Oldfield, John |
Mr John Richard Anthony Oldfield |
1899 |
Parliamentary Private Secretary |
| 5281 |
Oliver, Philip |
Mr Philip Milner Oliver |
1884 |
Backbencher |
| 5264 |
O'Mahony, John |
Mr John O'Mahony |
|
Backbencher |
| 5263 |
O'Maille, Padraic |
Mr Padraic O'Maille |
1878 |
Backbencher |
| 5282 |
Oman, Charles |
Professor Sir Charles William Chadwick Oman |
1860 |
Backbencher |
| 8027 |
O'Mara, James |
Mr James O'Mara |
1873 |
Backbencher |
| 8864 |
O'Neill, Hugh |
Honourable Robert William Hugh O'Neill |
1883 |
Parliamentary Secretary |
| 8087 |
O'Neill, John |
Mr John Joseph O'Neill |
1888 |
Backbencher |
| 5283 |
Onions, Alfred |
Mr Alfred Onions |
1858 |
Backbencher |
| 5292 |
Ormiston, Thomas |
Mr Thomas Ormiston |
1878 |
Backbencher |
| 8335 |
Ormsby-Gore, William |
Mr William George Arthur Ormsby-Gore |
1885 |
Cabinet Minister |
| 7961 |
Owen, Goronwy |
Major Goronwy Owen |
1881 |
Chief Whip/Deputy |
| 8018 |
Owen, Humphrey |
Mr Humphrey Frank Owen |
1905 |
Backbencher |
| 8281 |
Paget, Thomas |
Major Thomas Guy Frederick Paget |
1886 |
Backbencher |