Constance O’Brien

John O’Donovan (1809-1861)

Kathleen O’Meara (1839-1888)

Moira O’Neill

Oakley

H. O. Ogilvie-Grant

David William Stanley Ogilvy 12th Earl of Airlie (1856-11 June 1900)

Mabell Frances Elizabeth (Gore) Ogilvy Countess of Airlie (1866-1956)

Susan Oldfield (1830/31-1887)

Cordelia Anne Duke (Yonge) Oldfield (1807-1864)

General John Oldfield RA (1789-2 August 1863)

Colonel John Rawdon Oldfield

Margaret Oliphant (Wilson) Oliphant (1828-1897)

The Rt. Rev. Benjamin Treadwell Onderdonk (1791-1861)

Blanche Oram (1866-1930)

Antoine Marie Philippe Louis d’ Orleans duc de Montpensier (1824-1890)

Mrs Orpen

James Ripley Osgood (1836-1892)

Elizabeth Jane Oswald

Amelia Jane (Murray), Lady Oswald (1800-1892)

Ymal Oswin

Élise Charlotte Otté (Denmark c. 1820-1903 Surrey)

Helen Ouston

A. C. Owen

Mr. Owen

The Rev. Nutcombe (Oxnam) Oxenham (1811-1859)

Orthopaedic Hospital (organization)

Otterbourne Penny Club (organization)

Orphans Home, Plymouth, The (organization)

Otterbourne School (organization)

Once a Week (periodical) View letters

Otterbourne Parish Magazine (periodical) View letters