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