Mary Rose O'Neill

(born 1935) (b. 1935)

Parents

• Clare Désirée Blow
• Phelim O’Neill, 2nd Baron Rathcavan

Children

• Barnaby Stewart Hugh Blacker
• William O’Neill Blacker
• Rohan David Peel Blacker

Siblings

• Kathleen Mary Starkey
• Hugh Detmar Torrens O'Neill, 3rd Baron Rathcavan
• Grania Elizabeth O'Neill
• Moira Louisa O'Neill
• Kathleen O'Neill
• Rosetta Anne O'Neill

Partners

• David Stewart Wellesley Blacker