Surname List: Begins with O


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

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1. O'BARRY (2)
2. O'BRIAN (4)
3. O'BRIEN (10)
4. O'CONNELL (4)
5. O'CONNOR (7)
6. O'DELL (1)
7. O'DONNELL (2)
8. O'DONOGHUE (1)
9. O'HALLORAN (1)
10. O'HANIAN (1)
11. O'HARA (4)
12. O'KELLY (1)
13. O'LEARY (1)
14. O'MALLEY (1)
15. O'NEAL (3)
16. O'NEIL (6)
17. O'NEILL (5)
18. O'REILLY (8)
19. OAK (1)
20. OAKES (19)
21. OAKLAND (1)
22. OAKLEY (2)
   23. OAKMAN (1)
24. OAKS (2)
25. OAKSMITH (2)
26. OBEAR (1)
27. OBER (4)
28. OBERG (2)
29. OBERLANDER (2)
30. OBERNAMAN (1)
31. OBRIEN (1)
32. ODA (1)
33. ODDIHORN (1)
34. ODDING (1)
35. ODELL (3)
36. ODEN (1)
37. ODENBACK (3)
38. ODER (1)
39. ODIORNE (5)
40. ODLIN (5)
41. OELTJENBRUNS (2)
42. OGDEN (15)
43. OGLETREE (2)
44. OK (1)
   45. OLCOTT (3)
46. OLCUTT (2)
47. OLDHAM (12)
48. OLDS (5)
49. OLDSDATTER (1)
50. OLESON (1)
51. OLHSON (1)
52. OLIVA (2)
53. OLIVER (27)
54. OLLER (2)
55. OLMSTEAD (9)
56. OLMSTED (1)
57. OLNEY (2)
58. OLSDATTER (1)
59. OLSEN (2)
60. OLSON (9)
61. OMAN (1)
62. OMAR (1)
63. ONILLION (1)
64. ORANGE (1)
65. ORCUTT (15)
66. ORD (1)
   67. ORDWAY (153)
68. ORION (1)
69. ORMES (1)
70. ORMSBURY (1)
71. ORMSBY (25)
72. ORNE (8)
73. ORNE\HORNE (1)
74. ORPE (1)
75. ORR (7)
76. ORS (1)
77. ORSER (4)
78. ORTIZ (1)
79. ORTON (3)
80. OSBORN (10)
81. OSBORNE (15)
82. OSCARSON (1)
83. OSGOOD (160)
84. OSLINGTON (1)
85. OSTBURG (1)
86. OSTRANDER (1)
87. OSTROM (1)
88. OSUIGUE (2)
   89. OTIS (28)
90. OTOS (1)
91. OTTERSON (2)
92. OTTIGNON (1)
93. OUELETTE (1)
94. OUELLETTE (6)
95. OUGHTON (1)
96. OUILLETTE (1)
97. OUIRE (1)
98. OULDAM (1)
99. OUTRINGER (1)
100. OUVRARD (1)
101. OVERBURY (1)
102. OVERLY (1)
103. OVERSON (1)
104. OWEN (17)
105. OWENS (10)
106. OXNARD (1)