| Theresia Maria Prinzessin of OETTINGEN-WALLERSTEIN (____ - ____) |
| Herta OFFERL (____ - ____) |
| Mary Elizabeth OGDEN (1810 - 1867) |
| Robert Nash OGDEN (____ - ____) |
| Robert Nash OGDEN Jr (3 MAY 1839 - 16 APR 1905) |
| Sarah OGDEN (____ - ____) |
| Mattie OGILVIE (____ - ____) |
| Helen Jeanine OGLE (ABT 1947 - ____) |
| Hercules OGLE Sr. (6 APR 1731 - 1804) |
| John OGLE (1690 - ABT 9 APR 1741) |
| John OGLE (ABT 19 JAN 1753 - ABT 27 JUL 1808) |
| John S. OGLE (____ - ____) |
| Sarah OGLE (10 DEC 1776 - ABT 1850) |
| Thomas Edward OGLE (25 JUL 1721 - ABT MAR 1803) |
| Arddyn Benasgel of HEN OGLEDD (____ - ____) |
| James S. OGLES Sr. (27 APR 1790 - 27 JAN 1866) |
| Catherine Makepeace OGORMAN |
| Paul Keith OGORMAN (1 APR 1948 - ____) |
| Virginia Beckett OGORMAN |
| Shay OHEL (____ - ____) |
| Sierra OHEL (____ - ____) |
| Carmen Orlina OHR (23 JUL 1949 - ____) |
| Elbert Grady OHR (____ - ____) |
| Fastre I of OISY (Lord of Avesnes) (____ - ____) |
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