Name
- O'Brien, Edward, 4th Baronet, of Dromoland2
- O'Grady, Standish, 1st Viscount Guillamore, judge, 1766-18402
- Ogilvic, William, of Ardglass, county Down; husband of Bmilia Mary, Dowager Duchess of Leinster2
- Pakenham, Thomas, 2nd Earl of Longford2
- Parliament2
- Parsons, Laurence, 2nd Earl of Rosse2
- Pendleton, Samuel, barrister2
- Perceval, Charles George, 2nd Baron Arden2
- Planta, Joseph, the younger, GCH, diplomatist and politician, 1787-18472
- Rennie, John, engineer, 1761-18212
- Rochfort, Gustavus Hume, MP2
- Sirr, Henry Charles, Major; Chief of Police, Dublin2
- Smyth, John, police magistrate, Dublin2
- Stewart, Robert, Viscount Castlereagh, 2nd Marquess of Londonderry, 1769-18222
- Stopford, James George, Viscount Stopford, 3rd Earl of Courtown (1810)2
- Taylor, Alexander, Major; of Dublin Paving Corporation2
- Tighe, Robert Sterne, of South Hill, county Westmeath2
- Torrens, Henry, Major-General; KCB; of Add MS 401822
- Tottenham, Charles, High Sheriff of county Wicklow2
- Vandeleur, John Ormsby, General; KCB2