Mary O 'Brien to Ellen O Brian - 1881 Census household returns
- Mary O 'Brien
- William M O Beirne
- Harry O Bern
- William O Bern
- William O Bern
- Timothy O Bien
- Richard O Boyl
- Francis O Boyle
- John O Boyle
- John O Boyle
- Thomas O Boyle
- Thomas O Boyle
- Marget O Breien
- John O Brein
- William H N O Brennan
- Ann O Brian
- Ann O Brian
- Ann O Brian
- Barbary O Brian
- Bernard O Brian
- Bertha O Brian
- Bridget O Brian
- Catherine O Brian
- Charles O Brian
- Charles O Brian
- Cornelius O Brian
- Cornelius O Brian
- Daniel O Brian
- David O Brian
- David O Brian
- Dennis O Brian
- Edmund O Brian
- Edward O Brian
- Edward Dennis O Brian
- Eliza O Brian
- Elizabeth O Brian
- Elizabeth O Brian
- Elizabeth O Brian
- Elizabeth O Brian
- Ellen O Brian