| Otto I OTTONIAN (Holy Roman Emperor, King of Italy, King of Germany, Duke of Saxony) (23 NOV 912 - 7 MAY 973) |
| Marie of OUDENAARDE (____ - ____) |
| Lydia OURS (ABT 1857 - ____) |
| Mary Celestia OURS (ABT 1901 - ____) |
| William H OURS (24 OCT 1859 - 22 DEC 1905) |
| Orville OUSLEY Jr. (____ - ____) |
| Irving W. OUTLAW (____ - ____) |
| Willie OUTLAW (20 NOV 1901 - JAN 1977) |
| Ernest H. OVERBY (____ - ____) |
| Hazel M. OVERBY (16 JAN 1913 - 31 OCT 1999) |
| Rosalie OVERBY (____ - ____) |
| William H. OVERBY (____ - ____) |
| John OVERSTREET (____ - ____) |
| Laura Lucile OVERTON (____ - ____) |
| Gronwy ap OWAIN (____ - ____) |
| Nest OWAIN (____ - ____) |
| Adeline OWEN (OCT 1834 - ____) |
| Allie Drew OWEN (23 MAY 1894 - 18 MAY 1962) |
| Alverna M. OWEN (14 AUG 1883 - 18 SEP 1966) |
| Arvilla OWEN (9 FEB 1830 - 25 FEB 1903) |
| Brandi Allison OWEN (____ - ____) |
| Dora Mae OWEN (14 JAN 1884 - 26 SEP 1960) |
| Herbert OWEN (____ - ____) |
| James William OWEN (13 MAY 1881 - 15 APR 1935) |
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