Maureen O'Neill was born 1947 in Greymouth, Grey District, West Coast Region, New Zealand to James Richard (Jim) O'Neill (1912-1980) and Robina Bell (1924-1992) . She married Barry David Simpson (1943) 11 September 1965 in Christchurch, Christchurch City, Canterbury, New Zealand.
|Offspring of Maureen O'Neill and Barry David Simpson (1943)|
|John Milne Robert Simpson (living)|
|Andrew David Simpson (1969-1969)||26 July 1969 Rangiora, Waimakariri District, Canterbury Region, New Zealand||26 July 1969 Rangiora, Waimakariri District, Canterbury Region, New Zealand|
|Kathryn Rebecca Simpson (living)|