Michael George O'Brien

(born 1928) (b. 1928)

Parents

• Lady Helen Baillie-Hamilton
• Henry Barnaby O'Brien

Children

• Peter Thomond O'Brien
• Gillian Ursula Helen O'Brien
• John Michael O'Brien
• Rebecca O'Brien

Siblings

• Desmond Barnaby O’Brien

Partners

• Susan Mary Matilda Speir