- Opreu
-
Daniel 5425 b. 1838
- Orange
-
Thomas 4155 b. 1834, d. Dec 1899
- Orchard
-
Job 3394 b. 1833, d. 27 Apr 1868
- Orens
-
Isaac 3481 b. 1829
- Organ
-
James 6688 b. 1828
- Ormerod
-
John 4676 b. 1839, d. 5 Jul 1863
- Ormsby
-
Joseph 1625 b. 1818
- Ormsly
-
Joseph 1625 b. 1818
- Orpin
-
George 3596 b. 1826, d. 1889
- Orr
-
Hugh 5233 b. 1829John 5212 b. 1826, d. 4 Jun 1869John 8668 b. 1830
- Orricks
-
William 3121 b. 1823, d. 25 Sep 1865
- Orton
-
Joseph 8670 b. 1830
- Osbern
-
Joseph 3306 b. 1822, d. 14 Oct 1895
- Osboine
-
James 62 b. 16 May 1827, d. 15 Sep 1891
- Osborn
-
George 7812 b. 1835John 6398 b. 1838, d. 14 Aug 1893John 72 b. 1820, d. 4 Mar 1870William 6396 b. 1840, d. 12 Apr 1866
- Osborne
-
Frederick 9844 b. 1840, d. 28 Oct 1871James 5756 b. 1817James 62 b. 16 May 1827, d. 15 Sep 1891John 142 b. 1822John 6398 b. 1838, d. 14 Aug 1893John 72 b. 1820, d. 4 Mar 1870Joseph 3306 b. 1822, d. 14 Oct 1895Robert 8672 b. 1832, d. 20 Jun 1883William 1345 b. 1830, d. 22 May 1893William 5759 b. 1833, d. 11 May 1864William 6396 b. 1840, d. 12 Apr 1866