| Name | Birth Year | Death Year | Spouse or *Father Name |
| OBERLANDER,Marie Anna 12X1 | 1908 | NOBBE,Karl Hans 12X1-1876 | |
| OBIEGLO,Elsa Hedwig 12X1 | 1899 | KEIL,Martin Kurt F 1-2079 | |
| OBMANN,Annemarie 32Xf | 1934 | KAUFMANN,Heinz 32Xf-3290 | |
| OCKARDT,Eleonore Magdalene | 1754 | HOFFMANN,Christian E-1321 | |
| O'CONNOR,Adeline 71X3 | GREEN, 74.1,XIII.3-7655 | ||
| O'CONNOR,Mildred 71X5 | *O'CONNOR,Richard 71X2-7653 | ||
| O'CONNOR,Richard 71X2 | MEIER,Emilie 71X2-7652 | ||
| O'CONNOR,Vivian 71X4 | WALSH,William 71X4-7657 | ||
| OELLERS,Margarete Karoline | 1860 | 1923 | GROEBEN,Gunther G vd-1566 |
| OERTEL,Ursula 20.4,XIII.v | 1934 | TRINKLER,Johannes L 2-2436 | |
| OHLE,Hans 19.3,XIII.k | 1892 | 1972 | BECKSTROEM,Marie H 1-2246 |
| OHLE,Jorn Martin 13Xa | 1967 | *OHLE,Klaus Hinrich 1-2248 | |
| OHLE,Klaus Hinrich 13Xq | 1934 | KUHNERT,Karin Gisela-2249 | |
| OHLE,Siv Katrin 19.3,XV.ab | 1960 | BITTERLING,Uwe 13Xa-2251 | |
| OHLE,Wiebke 19.3,XIV.r | 1940 | PYL,Theodor Gottfried-2255 | |
| O'MAHONY,John F. 36.2,XV.j | 1955 | STEFFENS,Dawn P 32Xj-3854 | |
| O'MAHONY,Kellyanne 32XH | 1977 | *O'MAHONY,John F. 32Xj-3855 | |
| O'MAHONY,Kristin Elisabeth | 1978 | *O'MAHONY,John F. 32Xj-3855 | |
| O'NEIL,Brian Lee 76Xa | 1979 | *O'NEIL,Dennis 76Xb-7268 | |
| O'NEIL,Dennis 72.6,XV.bf | 1956 | LOCK,Monica Kathryn 7-7267 | |
| O'NEIL,Kyle Joseph 76Xa | 1986 | *O'NEIL,Dennis 76Xb-7268 | |
| O'NEIL,Nathan James 76Xa | 1982 | *O'NEIL,Dennis 76Xb-7268 | |
| OPITZ,Christian August 1 | 1760 | *OPITZ,Friedrich Erhard-152 | |
| OPITZ,Christian Friedrich | 1752 | 1757 | *OPITZ,Friedrich Erhard-152 |
| OPITZ,Christiane Elisabeth | 1717 | 1728 | *OPITZ,Erhard Friedrich-143 |
| OPITZ,Christina Sophia 1 | 1711 | KOSSINGER,Melchior M 1-163 | |
| OPITZ,Dorothea Elisabeth 1 | 1750 | *OPITZ,Friedrich Erhard-152 | |
| OPITZ,Dorothea Friederike | 1753 | 1757 | *OPITZ,Friedrich August-167 |
| OPITZ,Dorothea Friederike | 1760 | 1822 | SCHULMEISTER,Johann G-181 |
| OPITZ,Elsa Alice 12X5 | 1916 | NAKE,Heinrich Konrad-1703 | |
| OPITZ,Erhard Friedrich 1 | 1719 | LUTHER,Dorothea E 15Vo-142 | |
| OPITZ,Eva Dorothea 15VJ | 1709 | 1741 | EINICH,Johann Martin 1-146 |
| OPITZ,Friedrich August 1 | 1715 | 1799 | LAUE,Anna Maria 16VN-168 |
| OPITZ,Friedrich August 1 | 1758 | 1758 | *OPITZ,Friedrich August-167 |
| OPITZ,Friedrich August 1 | 1762 | 1766 | *OPITZ,Friedrich August-167 |
| OPITZ,Friedrich Erhard 1 | 1709 | KOHLER,Maria 1.5,VII.K-153 | |
| OPITZ,Friedrich Erhard 1 | 1759 | *OPITZ,Friedrich Erhard-152 | |
| OPITZ,Johann Adolf 15VQ | 1763 | *OPITZ,Friedrich Erhard-152 | |
| OPITZ,Johann Gottlob 15VK | 1740 | *OPITZ,Friedrich Erhard-152 | |
| OPITZ,Johanne Christiane 1 | 1751 | HAUPT,Friedrich G 16VU-175 | |
| OPITZ,Katharina Sophie E 1 | 1713 | 1726 | *OPITZ,Erhard Friedrich-143 |
| OPITZ,Marie Anna Sophie 1 | 1750 | *OPITZ,Friedrich Erhard-152 | |
| OPITZ,Marie Sophie 23 16VT | 1747 | 1822 | RICHTER,Johann Georg 1-170 |
| OPITZ,Rahel Elisabeth 16VW | 1756 | TENNER,Christian 16VW-178 | |
| OPPEN,VON 13.4,VII.3 | TETTAU VON,Wilhelm G-1617 | ||
| OPPENHEIM,Rachel Mathilde | 1880 | 1941 | SIEMENS,Johan Leopold-6618 |
| ORBAN,Lucy 46.2,X.6 | 1868 | LINDNER,Eugen Alfred-5101 | |
| ORLAMUNDER,Elisabeth 42X1 | 1912 | 1957 | BEER,Erich Karl 42X1-4977 |
| ORLOFF,Dorothea Sophie 7 | 1774 | PORSCH,Samuel 71V5-880 | |
| ORTEGEL,Magdalene 71X2 | 1850 | 1906 | ORTEL,Robert Emil 7-6923 |
| ORTEL,Alfred Max 73X2 | 1884 | 1884 | *ORTEL,Franz Moritz 7-6937 |
| ORTEL,Alma Laura 70.1,XI.3 | 1847 | 1921 | *ORTEL,Johann F 11Xf-1474 |
| ORTEL,Anna Johanna Ursula | 1923 | SCHULZE,Karl Heinrich-6959 | |
| ORTEL,Anna Margarete 73X2 | 1890 | 1974 | NIGGEMANN,Adolf Paul-7001 |
| ORTEL,Anna Marie 73X2 | 1889 | 1889 | *ORTEL,Franz Moritz 7-6937 |
| ORTEL,Bernhard Oskar 71X1 | 1845 | 1917 | KRETSCHMANN,Elise 7-6909 |
| ORTEL,Elise 70.1,XII.6 | 1878 | 1935 | *ORTEL,Robert Emil 7-6923 |
| ORTEL,Elise Hedwig 72X1 | 1873 | 1874 | *ORTEL,Franz Moritz 7-6937 |
| ORTEL,Emil Walter 73X2 | 1885 | 1886 | *ORTEL,Franz Moritz 7-6937 |
| ORTEL,Emma 70.1,XIII.3 | 1921 | HERTLEIN,Georg C 71X3-6928 | |
| ORTEL,Ernst Emil 73X2 | 1888 | 1930 | SCHMEISSER,Ida Frieda-6997 |
| ORTEL,Ernst Willi 73X2 | 1886 | 1886 | *ORTEL,Franz Moritz 7-6937 |
| ORTEL,Franz Moritz 71X4 | 1849 | 1906 | KRAUSE,Auguste M 71X4-6938 |
| ORTEL,Frieda Elisabeth 7 | 1883 | *ORTEL,Bernhard Oskar-6908 | |
| ORTEL,Frieda Lucie 73X1 | 1921 | 1921 | *ORTEL,Ernst Emil 73X2-6996 |
| ORTEL,Friedrich Gustav K 7 | 1894 | *ORTEL,Bernhard Oskar-6908 | |
| ORTEL,Friedrich Karl 72X1 | 1878 | 1879 | *ORTEL,Franz Moritz 7-6937 |
| ORTEL,Gunther Hans 72Xg | 1935 | 1954 | *ORTEL,Hugo Friedrich-6948 |
| ORTEL,Hans Peter 72Xh | 1944 | *ORTEL,Hugo Friedrich-6948 | |
| ORTEL,Heinrich 70.1,XII.7 | 1879 | 1916 | WOLFRAM,Walburger 7-6933 |
| ORTEL,Hertha 70.2,XIII.4 | 1903 | *ORTEL,Otto Moritz 7-6939 | |
| ORTEL,Hugo Friedrich Hans | 1912 | CHRISTOPH,Helene 72X6-6949 | |
| ORTEL,Ida Mathilde 71X8 | 1882 | *ORTEL,Robert Emil 7-6923 | |
| ORTEL,Ida Mathilde 74X5 | 1852 | 1922 | *ORTEL,Johann F 11Xf-1474 |
| ORTEL,Irmgard Johanna 72X7 | 1915 | FRAENKEL,Egon Kurt 7-6953 | |
| ORTEL,Johann Friedrich 1 | 1796 | 1871 | AVENARIUS,Auguste A 1-1473 |
| ORTEL,Johanna Elise Agnes | 1889 | *ORTEL,Bernhard Oskar-6908 | |
| ORTEL,Margareta Marie F 7 | 1886 | PRENZEL,Kurt Walter 7-6912 | |
| ORTEL,Maria Martha 72X1 | 1875 | 1879 | *ORTEL,Franz Moritz 7-6937 |
| ORTEL,Max Moritz Franz 7 | 1882 | 1882 | *ORTEL,Franz Moritz 7-6937 |
| ORTEL,Max Paul 70.2,XII.13 | 1876 | 1876 | *ORTEL,Franz Moritz 7-6937 |
| ORTEL,Olga Frieda 72X1 | 1879 | 1944 | FUGMANN,Richard Paul-6966 |
| ORTEL,Oskar Alfred 73X1 | 1880 | 1881 | *ORTEL,Franz Moritz 7-6937 |
| ORTEL,Oskar Bernhard 71X9 | 1882 | 1882 | *ORTEL,Robert Emil 7-6923 |
| ORTEL,Oskar Moritz 73X1 | 1883 | 1920 | *ORTEL,Franz Moritz 7-6937 |
| ORTEL,Oswald Hugo 72X1 | 1877 | 1929 | MOLLER,Frieda Anna M-6947 |
| ORTEL,Otto Hubert 72X5 | 1905 | *ORTEL,Otto Moritz 7-6939 | |
| ORTEL,Otto Moritz 72X1 | 1871 | BIMBERG,Anna Elisa L-6940 | |
| ORTEL,Robert Emil 71X2 | 1846 | 1899 | ORTEGEL,Magdalene 7-6924 |
| ORTEL,Robert Hermann 71X5 | 1877 | 1938 | EISEN,Wilhelmine 71X5-6926 |
| ORTEL,Ruth 70.2,XIII.9 | 1926 | *ORTEL,Oswald Hugo 7-6946 | |
| OSSE,Bernhard Nicolai Otto | 1886 | 1941 | LUTHER,Hildegard O A-1211 |
| OSTERBERG,Anne Brigitte 7 | 1955 | EICHLER,Andreas W E 7-7833 | |
| OSTERT,Adam Joseph 75Xa | 1980 | *OSTERT,Terry Robert 7-7228 | |
| OSTERT,Christopher L 75Xa | 1983 | *OSTERT,Terry Robert 7-7228 | |
| OSTERT,Gary Lee 72.5,XV.ar | 1954 | *OSTERT,Richard Lee 7-7221 | |
| OSTERT,Michelle Marie 75Xa | 1978 | *OSTERT,Terry Robert 7-7228 | |
| OSTERT,Richard Lee 75X1 | 1935 | BUCK,Betty Jane 75X1-7220 | |
| OSTERT,Sherry Lynn 75Xa | 1955 | MATTHEWSON,Brian L 7-7224 | |
| OSTERT,Terry Robert 75Xa | 1956 | ERNST,Catherine Ann 7-7229 | |
| OSTERT,Tina Marie 75Xa | 1963 | BRUNDAGE,Dion 75Xa-7234 | |
| OSTHER,Rosemarie 21X1 | HOPPE,Wilhelm Hermann-3150 | ||
| OSWALD,Carola Johanna L M | 1904 | 1974 | SARTORIUS,Friedrich R-2907 |
| OTT,Conrad 30.3,XII.11 | 1892 | MAUTES,Margarete 33X1-3314 | |
| OTTO, 29.3,XI.19 | LUTHER,Marie 23X1-3232 | ||
| OTTO, 3.3,XI.o | LUTHER,Wilhelmine A 3-570 | ||
| OTTO,Christian 1.8,VI.V | 1691 | 1736 | LUTHER,Christiana S 1-241 |
| OTTO,Elisabeth 41.3,XII.9 | 1901 | 1956 | HAUFFE,Martin 43X9-4265 |
| OTTO,Petronella 11.2,VII.4 | 1809 | HOFFMANN,Johann M 1-1410 | |
| OTTO,Rosine Amalie 7.3,X.o | 1830 | 1870 | ROSSNER,Hermann 73Xo-967 |
| OUDENDIJK,Hendrik Mattheus | 1900 | KIJLSTRA,Agnes Marie-6054 | |
| OUDENDIJK,Hendrikus M L 5 | 1935 | *OUDENDIJK,Hendrik M L-6055 | |
| OUDENDIJK,Willem Jacob 5 | 1937 | *OUDENDIJK,Hendrik M L-6055 | |
| OUDTSHOORN VAN,C Baronin v | 1898 | TIMMERSVERHOEVEN,H P-6412 |