- Old
- Oldcorn
-
Kathleen Annie (1901 - 1977)
- Oldford
-
Caroline
(1894 - )
- Oliff
-
John (1777 - 1846)Susan (1809 - )
- Oliver
-
Laura B (1880 - )Mary (1865 - b 1895)Reginald W (1879 - )Thomas (1880 - )William B (1850 - )
- Oller
-
Corinne Elizabeth
(1904 - 1980)
- Olson
-
Gretchen Elaine
(1935 - 2016)
- Oneill
-
Kenneth Henry
(1929 - )
- Ongley
-
Albert (1863 - 1951)Binie Elizabeth
(1889 - 1961)
Henry (1822 - 1923) - Oram
-
Joanna
(1748 - 1826)
Robert(1697 - 1782)
Robert(1736 - )
- Orbell
- Orchard
-
Fanny (1862 - )Richard Summers (1849 - 1876)
- Organ
-
Pamela Joyce (1937 - 1991)
- Ormiston
-
Violet Patricia (1932 - 2012)
- Ormond
-
Elizabeth (1745 - 1829)
- Ortiz Rubio
-
Maria del Refugio (1907 - 1978)
- Orton
-
Annie E
(1891 - 1998)
Arthur Mark (1910 - 1984)John Edward(1865 - 1941)
John Edward Jr.(1897 - 1953)
Mabel M(1902 - 1956)
- Osborn
-
Dennis Albert (1926 - 2012)Rose Hannah (1805 - 1855)
- Osborne
-
George Alfred (1928 - 1976)Jane (1861 - )John W (1888 - 1941)Joseph Charles Cecil (1899 - 1976)Marie Jean (1915 - 1986)Vivian de Orellana (1880 - 1963)
- Osbourne
-
Albert Edward (1909 - )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)