- O'Sullivan
- Oakley
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Amelia b. 8 Jul 1847, d. 22 Sep 1938Avery May b. 1925, d. 4 Sep 2015Chloris Ellen Rose b. 18 Apr 1922, d. 14 Sep 2008Herbert Leslie b. 4 Feb 1896
- Odlum
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William Charles b. 27 Sep 1900, d. 30 Jan 1968
- Ogden
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Clyde b. c 1902, d. 16 Jun 1981David James b. 6 May 1934, d. 21 Oct 2000
- Oliffe
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Jack b. 24 Apr 1929, d. 2 Nov 2012
- Oliver
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George b. 13 Feb 1772, d. 13 Apr 1834Gordon b. 1928, d. 28 Sep 2016Mary Jane b. 15 Feb 1859, d. 29 Jul 1933Matthew b. 31 Oct 1826, d. 6 May 1890Matthew b. 4 Aug 1863, d. 22 Jun 1949Minnie Smith b. 24 Sep 1899, d. 11 Sep 1994
- Olsen
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Flora Eugenie b. 11 Oct 1876, d. 21 Mar 1961
- Olsson
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Lars Olaf Martin b. 17 Jun 1917, d. 30 Apr 1985
- Oram
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John b. 2 Feb 1677, d. 26 Feb 1747Sarah b. c 1717, d. Dec 1770
- Orchard
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Nellie b. c 1888, d. 15 Oct 1932
- Ornberg
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Greta b. 18 Feb 1798, d. 29 Feb 1880
- Orrock
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Agnes b. 13 Nov 1814, d. 31 Aug 1901James b. c 1682, d. 27 Jan 1735Robert b. c 1717, d. 1798Robert b. 11 May 1753
- Osborn
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Doris Mary b. 1900, d. 23 Dec 1980Minnie Ethel Mary b. 1890, d. 28 Mar 1953Sydney b. 26 Mar 1866, d. 1 Dec 1921William John b. c 1824, d. 5 Nov 1894
- Ostle
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Thomas b. 1 Jan 1862, d. 28 Jun 1924William Barwick b. 15 Dec 1885, d. 24 Jun 1961