- Osburn
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Maggie Genevieve b. 30 Jul 1912, d. 28 Nov 1998
- Osche
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Emma Jean b. 14 Nov 1928, d. 14 Oct 1978Herman Joseph b. 7 Nov 1893, d. 26 Jan 1958Robert Eugene b. 9 May 1925, d. 27 Sep 1977
- Osler
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Mary Bernice b. 23 Jul 1908, d. 1989Millard Fillmore b. 31 Aug 1872, d. 9 Oct 1927
- Oslund
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Edna Albertina b. 18 Nov 1906, d. 26 Dec 1993
- Osman
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Albert Thomas b. 4 Jan 1918, d. 2 Jul 1997
- Osmun
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Christianna b. 18 Nov 1808, d. 11 Apr 1874
- Ostendorf
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Lydia b. 4 Dec 1922, d. 11 Sep 2007Otto Frank b. 29 Jun 1886, d. 2 Oct 1972
- Oster
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Myrtle b. Oct 1875, d. 1950
- Oswald
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Iva Ruth b. 19 May 1895, d. 29 Jan 1994
- Ott
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George Washington b. 29 Apr 1873, d. 16 May 1944Lena b. 1841, d. 1913Maria Barbara b. 8 Apr 1858, d. 24 Jul 1907William Frederick b. 14 Apr 1848, d. 23 Mar 1908
- Ottarsson
- Otten
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Hilda b. 10 May 1899, d. 22 Aug 1958
- Ottendorf
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Anna Cordelia b. 13 Oct 1897, d. 14 Oct 1977
- Otterson
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Magda Caroline b. 9 Apr 1908, d. 14 Jan 1990
- Ours
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Loretta Lou b. 26 Jan 1947, d. 28 Jan 1975Marion Ellsworth b. 19 Nov 1883, d. 19 Dec 1960Ralph Ezra b. 8 Jul 1921, d. 20 Aug 2011
- Outersky
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James b. 8 Sep 1908, d. 9 Jan 1979Marilyn Sue b. 23 Aug 1937, d. 26 Aug 2011
- Outterson
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George Gilbert b. 27 Nov 1918John Dea b. 1895, d. 12 Mar 1956
- Overbaugh
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Mary Alverta b. 7 Jan 1870, d. 25 Apr 1894