- O'Connor
-
Thelma Rita (1913 - 1995)
Winifred Blanch (c 1901 - 1980)
- O'Neill
- Oakes
-
Francis (1818 - 1866)
- Oakley
-
Riddiford Colborne (1883 - 1964)
- Odhams
-
Elizabeth Muirhead (1931 - 1995)
Geoffrey Charles (1904 - 1992)
Timothy Charles (1928 - 1992)
- Ormsby
-
Edna Genevieve (c 1888 - )