| OBST, Ida Minna | B. 1897 | D. 1897 | ||
| OBST, Johann Albert | B. 1894 | D. 1922 | ||
| OBST, Johann Carl | B. 28 JUL 1845 (at sea aboard 'Patel') | D. 1876 (Sutherlands, South Australia) | ||
| OBST, Johann Carl | B. 1852 | D. 1932 | ||
| OBST, Johann Carl Friedrich | B. 29 NOV 1821 (Merschwitz, Liegnitz, Silesia, Prussia) | D. 1 MAY 1876 (Light Pass, South Australia) | ||
| OBST, Johann Friedrich | B. 16 JUL 1846 (Truro, South Australia) | D. 26 JAN 1927 | ||
| OBST, Johann Friedrich | B. 19 JUL 1870 | D. 4 OCT 1955 | ||
| OBST, Johann Gotthold | ||||
| OBST, Johann Gottlieb | ||||
| OBST, Johann Gottlieb | B. 18 DEC 1857 (Light Pass, South Australia) | D. 2 FEB 1915 | ||
| OBST, Johann Gottlieb | B. 1880 | D. 1970 | ||
| OBST, Johann Gottlieb | ||||
| OBST, Johann Gottlob | B. 2 NOV 1859 (Light Pass, South Australia) | D. 24 MAY 1911 (Angaston, South Australia) | ||
| OBST, Johann Reinhold | B. 1891 | |||
| OBST, Johanna Maria |
| OBST, Johanne Bertha | B. 17 FEB 1871 | D. 5 JUN 1952 | ||
| OBST, Johanne Christiane | B. 1850 | D. 1898 | ||
| OBST, Johanne Louise Christiane | B. 1865 | D. 1891 | ||
| OBST, Maria Bertha | B. 6 JUL 1876 (Light Pass, South Australia) | |||
| OBST, Maria Dorothea | B. 1904 | |||
| OBST, Maria Helena | B. 1887 | D. 1890 | ||
| OBST, Maria Selma | B. 1899 | |||
| OBST, Marie Elisabeth | B. 1872 | D. 1948 | ||
| OBST, Martin Walter | B. 1893 | D. 1966 | ||
| OBST, Mathilda Elsie | B. 1901 | D. 1952 | ||
| OBST, Melba Elizabeth | B. 1907 | D. 1980 | ||
| OBST, Mervyn Herbert | ||||
| OBST, Norma Mildred | B. 1904 | |||
| OBST, Oscar Bernhard | B. 1899 | D. 1944 | ||
| OBST, Otto Gustav | B. 1875 | D. 1948 |
| OBST, Otto Julius | B. 1888 | D. 1956 | ||
| OBST, Paul August | B. 20 OCT 1880 | D. 6 JUN 1962 | ||
| OBST, Paul Bernhard | B. 1899 | |||
| OBST, Pauline Clara | B. 20 OCT 1887 | D. 16 NOV 1969 | ||
| OBST, Pauline Ernstine | B. 28 JUL 1874 | |||
| OBST, Pauline Sarah | B. 1883 | D. 18 JUN 1951 (Nuriootpa, South Australia) | ||
| OBST, Pauline Sarah | B. 1861 | D. 1935 | ||
| OBST, Rosina | B. 1854 | D. 1854 | ||
| OBST, Rosina | B. 1855 | |||
| OBST, Sarah Emma | B. 1881 | D. 1915 | ||
| OBST, Sophia | B. 1910 | |||
| OBST, Sophia Minna | B. 1901 | |||
| OBST, Wilfried Berthold | B. 1898 | D. 1980 | ||
| OCKENDEN | ||||
| ODEWAHN, Bertha Maria Sophia | B. 24 FEB 1834 | D. 22 JUL 1906 |
| ODGERS, Catherine | B. 1805 (Wendron, Cornwall, England) | |||
| ODGERS, Elizabeth | ||||
| ODGERS, Jennipher (Jane) | ||||
| ODGERS, John | B. 1806 (Wendron, Cornwall, England) | |||
| ODGERS, John | ||||
| ODGERS, Mary | ||||
| ODGERS, Patience | ||||
| ODGERS, Samuel | B. 15 JUN 1777 (Wendron, Cornwall, England) | |||
| ODGERS, Samuel | B. ABT 1750 | |||
| ODGERS, Samuel | ||||
| ODGERS, Samuel | ||||
| ODGERS, Zenobia | B. 1808 (Wendron, Cornwall, England) | D. AUG 1874 (New Plymouth, New Zealand) | ||
| OEHLERS, Paul | B. 1747 (Herzhorn) | D. 1782 (Herzhorn) | ||
| OEKLER, Ilse Margarethe | B. 3 OCT 1767 (Fernhavekost, Prussia) | D. 23 FEB 1831 (Langlingen, Prussia) | ||
| OELGARD, Dorothea | B. 1670 |
| OERTEL | ||||
| OFFENEI, Auguste Frida | B. 25 JUN 1871 (Hannover) | |||
| OFFENEI, Carl Friedrich Ludwig | ||||
| OFFENEI, Friederike Helene Minna | B. 19 FEB 1880 (Hannover) | |||
| OGILVIE WEBB, Arthur William | ||||
| OGILVY, Mary Ann | B. NOV 1849 | D. 10 MAR 1868 | ||
| OHLENDORF, Auguste | B. 29 DEC 1833 (Badenhausen, Prussia) | |||
| OHNESORGE, Johann Andreas | ||||
| OHNESORGE, Johanne Sabine Henriette | ||||
| OHSE, Illian | D. 24 OCT 1637 (Osterode) | |||
| OKE, Ellen Esther | B. 14 JUN 1849 (Walkerville, South Australia) | D. 11 NOV 1911 (Broken Hill, New South Wales) | ||
| OKE, Emma Matilda | B. 18 JAN 1852 (Woodside, South Australia) | D. 11 SEP 1924 (Caltowie, South Australia) | ||
| OKE, Maria | B. 1756 (Axmouth, Devon, England) | D. 1778 (Exeter, Devon, England) | ||
| OKE, Philip James | ||||
| OLANDER, Francis | B. 18 MAR 1912 | D. 5 FEB 1967 (Sydney, New South Wales) |