William Ord Blacklock1 
Children of William Ord Blacklock and Diana Frances Samuelson
- Catherine Margaret Blacklock+2 b. 2 Jun 1945
- Frances Elizabeth Blacklock+2 b. 3 Nov 1946
- Stephanie Blacklock+2 b. 16 May 1952
Catherine Margaret Blacklock1
From 1970, her married name became Mant.
Children of Catherine Margaret Blacklock and Alistair Donald Mant
- Eleanor Frances Mant2 b. 1972
- Isabel Catherine Mant2 b. 1975
Alistair Donald Mant1
He lived at Sydney, New South Wales, Australia.1
Children of Alistair Donald Mant and Catherine Margaret Blacklock
- Eleanor Frances Mant2 b. 1972
- Isabel Catherine Mant2 b. 1975
Eleanor Frances Mant1
Isabel Catherine Mant1
Frances Elizabeth Blacklock1
From 1970, her married name became Conroy. From 1990, her married name became Jarvis.1
Children of Frances Elizabeth Blacklock and Dennis Thomas Conroy
- Joanna Mary Conroy2 b. 1971
- Alice Frances Conroy2 b. 1973
- Thomas Liam Conroy2 b. 1974
- Kate Diana May Conroy2 b. 1980
Dennis Thomas Conroy1
Children of Dennis Thomas Conroy and Frances Elizabeth Blacklock
- Joanna Mary Conroy2 b. 1971
- Alice Frances Conroy2 b. 1973
- Thomas Liam Conroy2 b. 1974
- Kate Diana May Conroy2 b. 1980
Thomas Liam Conroy1
Joanna Mary Conroy1
Alice Frances Conroy1