- Orbell
- Orchard
-
Dorothy Lillian
(1908 - 1981)
Fanny (1862 - ) - Ormiston
-
Violet Patricia (1932 - 2012)
- Ormond
-
Elizabeth (1745 - 1829)
- Osborne
-
Jane (1861 - )John W (1888 - 1941)Joseph Charles Cecil (1899 - 1976)
- Osbourne
-
Albert (1910 - )Albert Edward (1932 - 1994)Alfred George T (1908 - )Beverley Margaret
(1951 - 1996)
Dorothy (1900 - 1988)Edith May (1900 - 1901)Frederick Thomas (1902 - 1950)Frederick Thomas (1924 - 1980)George Henry (1942 - 1995)Jesse John C (1897 - 1959)Jesse John Cecil (1874 - )Leonard Gough (1885 - 1917)Lewis James (1898 - 1903) - Osler
- Osmond
- Oster
-
Mary Alena (1902 - )
- Ottewell
-
Kenneth Lincoln (1909 - 1990)
- Owen
-
Edward Evan (1937 - 1937)Evan (1910 - 1988)Frederick Norman (1908 - 1985)Nellie (1897 - 1997)
- Owers
-
Florence C (1890 - )
- Pace
-
May
(1871 - )
- Pacey
-
Fred Charles (1894 - 1963)
- Pack
-
Alice Elizabeth (1890 - 1963)Charles William (1888 - 1966)Edward Charles William (1914 - 1943)Elsie Mary (1913 - 1992)Lily Alice (1916 - 1972)Stanley Victor (1926 - 2010)William (1863 - 1933)
- Paddick
-
Augusta Christina (1873 - 1937)
- Paddock
- Pagett
-
Anna (1650 - 1719)
- Pain
-
Ann (1770 - )
- Paintain
- Painter