Barton Historical & Genealogical Society
 Barton Database

Surname List: Begins with O


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All surnames beginning with O, sorted alphabetically (total individuals):

1. O 'Bryan (1)
2. O'Brian (2)
3. O'Brien (11)
4. O'Bryant (2)
5. O'Coin (1)
6. O'Connell (5)
7. O'Conner (3)
8. O'Conner / O'Connor (1)
9. O'Connor (1)
10. O'Dea (1)
11. O'Dell (3)
12. O'Donnell (5)
13. O'Donovan (1)
14. O'Farrell (1)
15. O'Gar (1)
16. O'Grady (3)
17. O'Griffin (1)
18. O'Hara (1)
19. O'Hearn (1)
20. O'Kane (1)
21. O'Keefe (3)
22. O'Kelley (1)
23. O'Laughin (1)
24. O'Leary (3)
25. O'Mahoney (1)
26. O'Malley (1)
27. O'Mara (1)
28. O'Neal (3)
29. O'Neil (2)
30. O'Neill (3)
31. O'Quinn (4)
32. O'Rear (1)
33. O'Reilly (1)
34. O'Rielly (1)
35. O'Riley (1)
36. O'Rourke (2)
37. O'Shaughnessy (3)
38. O'Sullivan (1)
39. Oakes (8)
40. Oakley (1)
41. Oaks (2)
42. Oates (2)
   43. Oats (2)
44. Oban (1)
45. Obannon (1)
46. Obenhoff (1)
47. Oberbacher (1)
48. Oberfoell (1)
49. Oberlander (1)
50. Oberley (1)
51. Oberlin (1)
52. Oberthier (1)
53. Ocampo Rosete (1)
54. Ochs (1)
55. Oconner / O'Conner (1)
56. Oconor later Barton (1)
57. Oddy (3)
58. Odegard (1)
59. Odell (2)
60. Odem (1)
61. Oden (1)
62. Odle (4)
63. Odom (4)
64. Oelke (1)
65. Oerther (1)
66. Oetzel (1)
67. Offer (1)
68. Offermann (1)
69. Offord (2)
70. Offutt (1)
71. Ogborn (1)
72. Ogden (2)
73. Ogilvie (1)
74. Ogle (1)
75. Ogles (1)
76. Oglesby (2)
77. Ohl (3)
78. Ohlendorf (1)
79. Ohm (1)
80. Ohneck (1)
81. Okada (1)
82. Oke (1)
83. Okenfus (1)
84. Okerlund (1)
   85. Okes (1)
86. Okeson (1)
87. Okland / Oakland (1)
88. Olcott (1)
89. Oldfield (2)
90. Oldham (4)
91. Olds (3)
92. Olekas (2)
93. Oles (1)
94. Olguin (1)
95. Olin (2)
96. Olinde (1)
97. Oliphant (2)
98. Oliphint (1)
99. Olivarez (1)
100. Oliveira (2)
101. Oliver (29)
102. Oliveres (1)
103. Oller (3)
104. Ollivier (2)
105. Olmstead (2)
106. Olmstead / Olmsted (1)
107. Olmsted (1)
108. Olney (1)
109. Olsen (5)
110. Olson (12)
111. Omholt (1)
112. Omohundro (3)
113. Onderdonck (1)
114. Onderdonk (1)
115. Oneal / O'Neal (1)
116. Oneil (1)
117. Onirk (2)
118. Onsgard (1)
119. Onstad (1)
120. Onstott (1)
121. Oosterveen (1)
122. Opalenik (1)
123. Opatz (1)
124. Opel (1)
125. Oppenheim (3)
126. Opris (1)
   127. Oramas (1)
128. Orbough (1)
129. Orchard (3)
130. Orcutt (3)
131. Orelero / Ortelers (1)
132. Orem (1)
133. Oremus (1)
134. Organ (2)
135. Orick (1)
136. Origliasso (1)
137. Orisek (1)
138. Ormerod (1)
139. Ormesher (1)
140. Orndorff (1)
141. Orne (1)
142. Oronoz (1)
143. Orork (1)
144. Orr (14)
145. Orren (1)
146. Orris (1)
147. Ortgiesen (1)
148. Orth (2)
149. Ortland (1)
150. Ortner (1)
151. Ortwein (1)
152. Orullian / Aposhian (1)
153. Osbon (1)
154. Osborn (12)
155. Osborne (14)
156. Osbourne (2)
157. Osbun (1)
158. Osburn (5)
159. Osburne (1)
160. Oscroft (1)
161. Osgood (3)
162. OShia (1)
163. Oshman (1)
164. Osick (1)
165. Osland (1)
166. Osma (1)
167. Osner (1)
168. Osorioz Bravo (1)
   169. Ostara (1)
170. Ostergren (1)
171. Ostler (1)
172. Ostrancer (1)
173. Ostrander (4)
174. Ostrum (1)
175. Oswald (3)
176. Oswalt (1)
177. Oswin (1)
178. Otey (2)
179. Othic (1)
180. Ott (6)
181. Ottelin (1)
182. Otto (1)
183. Ouiguis (1)
184. Ousse (1)
185. Outhouse (3)
186. Outlaw (1)
187. Ouzts (1)
188. Ovaltae (1)
189. Overacker (1)
190. Overall (1)
191. Overfelt (2)
192. Overfield (2)
193. Overhalser (1)
194. Overhalt (1)
195. Overholt (1)
196. Overland (1)
197. Overly / Overley (1)
198. Overmeyer (1)
199. Overstreet (1)
200. Overton (7)
201. Ovren (1)
202. Owen (15)
203. Owen / Owens (1)
204. Owens (25)
205. Owings (3)
206. Ownbey (1)
207. Ownes (1)
208. Owsley (2)
209. Oxendine (10)
210. Ozene (1)