| O'DONOVAN, Eric Etienne Besson | B. 1898 | |||
| O'DONOVAN, Noel Eric Besson | B. 12 FEB 1922 (Brisbane, Queensland) | D. 7 SEP 2002 (Carseldine, Queensland) | ||
| O'DONOVAN, Will Francis | B. 28 MAR 1924 (Brisbane, Queensland) | D. 22 DEC 1989 (Queensland) | ||
| O'FARRELL, Winifred Marjorie | B. 1913 | D. 1999 | ||
| O'HALLORAN, Edward Clanfergeal | B. 21 JAN 1880 (Riverton, SA) | D. 1961 (Adelaide, South Australia) | ||
| O'HALLORAN, Max | B. 19 AUG 1910 (Norwood, South Australia) | D. 6 FEB 1994 (Somerton, South Australia) | ||
| O'LEARY, Johanna | B. ABT 1835 | D. 16 JUN 1920 (Malvern, South Australia) | ||
| O'LEARY, John Vincent | B. 19 MAR 1897 | |||
| O'LOUGHLIN, Mary | B. 18 MAR 1857 (Clare, Ireland) | D. 26 FEB 1948 (Kadina, South Australia) | ||
| O'NEILL, James | ||||
| O'NEILL, Maureen Patricia | ||||
| O'ROURKE, Owen Alfred | B. 1884 | |||
| O'SHAUGHNESSY | ||||
| OAKLEY | ||||
| OAKLEY, Amelia |
| OAKLEY, Eliza Sarah | B. 15 JAN 1865 (Ipswich, Suffolk, England) | D. 21 APR 1934 | ||
| OATES, Mary Anne | B. 1856 | D. 1887 | ||
| OBERHEIM, Christoph | ||||
| OBERHEIM, Kunigunda | B. 7 JAN 1673 (Gedern) | D. 7 SEP 1746 (Gedern) | ||
| OBST | ||||
| OBST | ||||
| OBST, Alwine Christine | B. 1896 | |||
| OBST, Amelia Auguste | ||||
| OBST, Anna Bertha | B. 1863 | D. 1895 | ||
| OBST, Anna Elisabeth | B. 1865 | D. 1896 | ||
| OBST, Anna Lydia | B. 1867 | D. 1933 | ||
| OBST, Anna Maria Bertha | B. 1874 | D. 1933 | ||
| OBST, Arthur Alfred | B. 1891 | D. 1958 | ||
| OBST, Arthur Berthold | B. 1897 | D. 1960 | ||
| OBST, Audrey Clarice |
| OBST, August Heinrich | B. 1900 | D. 1900 | ||
| OBST, August Heinrich | B. 1879 | D. 1879 | ||
| OBST, August Herman | B. 1870 | D. 1902 | ||
| OBST, Bernard Walter | B. 1898 | D. 1973 | ||
| OBST, Bertha Anna | B. 1869 | D. 1937 | ||
| OBST, Bertha Ottilie | B. 1892 | D. 1959 | ||
| OBST, Carl | ||||
| OBST, Carl Heinrich August | B. 15 MAY 1870 (Light Pass, South Australia) | D. 14 JUN 1940 (Albury, New South Wales) | ||
| OBST, Carl Wilhelm | B. 1899 | D. 1967 | ||
| OBST, Cecilia Elsa | B. 1901 | |||
| OBST, Edwin Alwin | B. 1906 | |||
| OBST, Edwin Berthold | B. 1906 | D. 1908 | ||
| OBST, Edwin Herbert | B. 1898 | D. 1908 | ||
| OBST, Edwin Otto | B. 1901 | |||
| OBST, Elda Ruby | B. 1902 | D. 1966 |
| OBST, Elizabeth Bertha | B. 17 JAN 1882 (Bagots Well, South Australia) | D. 10 JUN 1956 (Cowell, South Australia) | ||
| OBST, Emilie Clara | B. 1886 | D. 1971 | ||
| OBST, Emilie Hilda | B. 1903 | |||
| OBST, Emilie Selma | B. 1885 | D. 1949 | ||
| OBST, Emma Bertha | B. 1878 | D. 1944 | ||
| OBST, Emma Lydia | B. 1879 | D. 1960 | ||
| OBST, Ernst | ||||
| OBST, Ernst Gotthold | B. 1877 | D. 1943 | ||
| OBST, Ernst Gottlieb | B. 27 MAR 1843 (Liegnitz, Silesia, Prussia) | D. 21 MAY 1916 | ||
| OBST, Ernstine Meta | B. 1894 | D. 1958 | ||
| OBST, Frederick William | B. 1883 | D. 1954 | ||
| OBST, Friedrich Herbert | B. 1896 | |||
| OBST, Friedrich Wilhelm | B. 1872 | D. 1949 | ||
| OBST, Friedrich Wilhelm | B. 21 DEC 1867 (Light Pass, South Australia) | D. 13 JUL 1905 | ||
| OBST, George Clifford | B. 1918 | D. 1976 |
| OBST, Gottlob | B. 1896 | D. 1896 | ||
| OBST, Gottlob | B. 2 FEB 1816 (Merschwitz, Liegnitz, Silesia, Prussia) | |||
| OBST, Gustav August | B. 1873 | D. 1873 | ||
| OBST, Gustav Berthold | B. 1889 | D. 1971 | ||
| OBST, Gustav Herbert | B. 1896 | D. 1922 | ||
| OBST, Harold Arthur | ||||
| OBST, Heinrich Albert | B. 1884 | D. 1965 | ||
| OBST, Heinrich August | B. 1886 | |||
| OBST, Heinrich August | B. 8 OCT 1838 (Silesia, Prussia) | D. 7 MAY 1905 (Light Pass, South Australia) | ||
| OBST, Heinrich August | B. 26 JUL 1848 (Light Pass, South Australia) | D. 3 APR 1873 (Light Pass, South Australia) | ||
| OBST, Helena Wanda | B. 1891 | |||
| OBST, Hertha Antonie | B. 1894 | |||
| OBST, Hertha Lydia | B. 1904 | |||
| OBST, Ida Blondina | B. 1909 | |||
| OBST, Ida Martha | B. 1889 | D. 1971 |