Maria OTT (27 JUN 1827 - 23 JUN 1919)
Adils OTTARSEN (____ - ____)
Carl Friedrich Hermann ("Charles") OTTO (6 APR 1892 - ____)
Grant M. OTTO (24 JAN 1890 - 27 MAR 1963)
John OTTO (____ - ____)
June P. OTTO (28 JUN 1931 - 11 OCT 2002)
Sophia Anna OTTO (20 OCT 1856 - 16 JUN 1890)
Susanna Catherine OTTO (23 DEC 1769 - 10 APR 1848)
Henry OTTOSON (4 OCT 1904 - 14 MAR 1971)
Dorothy Rose OUELLETTE (21 MAR 1919 - 18 JUL 2009)
Lorraine OULLETTE (21 DEC 1930 - ____)
Mary F. OVER (19 JAN 1853 - 15 JUN 1920)
Magdalena OVERHOLTZER (19 APR 1763 - 29 MAR 1839)
Mabel Irene OVERLOCK (28 JUL 1913 - 15 JUL 1995)
Catharine OVERLY (20 MAY 1831 - 4 FEB 1903)
Brent D. OVERTON (____ - ____)
Bruce OVERTON (____ - ____)
Isabel OVERTON (1608 - 8 MAR 1660)
Macaboo Lee OVERTON (____ - ____)
Diego, Count of OVIEDO (CA 1024 - ____)
Einion ab OWAIN (____ - 984)
Gwenwynwyn ab OWAIN (____ - CA 1216)
Llywelyn Ap OWAIN (CA 1270 - ____)
Maredudd ab OWAIN (____ - 999)
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