- Obro
-
Henry 5106 b. 1839
- Offer
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Henry 746 b. 1829, d. 25 Aug 1913
- Ogborn
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Henry 2706 b. 1828, d. 8 Mar 1902
- Ogborne
-
James Henry 2706 b. 1828, d. 8 Mar 1902
- Ogilvie
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Daniel 8116 b. 1840, d. 21 Mar 1891William Lindsay 1010 b. 1831
- Ogle
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Hans 822 b. 1819, d. 11 Nov 1874John 784 b. 1828, d. 1861Robert 783 b. 1831, d. 21 Sep 1884
- Oldfield
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John 1205 b. 1821, d. 8 Nov 1900
- Oldham
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Henry 7667 b. 1832, d. 1887John Charles 7506 b. 9 Aug 1834, d. 9 Jul 1887Joshua 7811 b. 1834, d. 14 Jan 1865William 6690 b. 1835, d. 15 Apr 1891
- Olive
-
James 3459 b. 1828, d. 18 Apr 1881John 3459 b. 1828, d. 18 Apr 1881
- Oliver
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Alfred 8951 b. 1840George 65 b. 1822Job 6895 b. 1836, d. 15 Oct 1915John 3336 b. 1833, d. 31 Jul 1867John 3365 b. 1810, d. 31 Jul 1867William Lemon 6947 b. 1820, d. 9 Jan 1873
- Olley
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John 6399 b. 1832, d. 3 Mar 1879
- Ollis
-
John 8953 b. 1841
- Olliver
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John 3336 b. 1833, d. 31 Jul 1867John 3365 b. 1810, d. 31 Jul 1867
- Onion
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Edward 8377 b. 1834, d. 26 Nov 1906
- Onions
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Edward 8377 b. 1834, d. 26 Nov 1906
- Onslow
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George 8651 b. 1833
- Oppenheim
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Jacob 5213 b. 1830, d. 23 Dec 1860