John O'boyle to Cornelius O'brian - 1881 Census household returns
- John O'boyle
- John O'boyle
- John O'boyle
- John O'boyle
- Luke O'boyle
- Michael O'boyle
- Patrick O'boyle
- Peter O'boyle
- Phillip O'boyle
- Thomas O'boyle
- Thomas O'boyle
- Thomas O'boyle
- George H O'bree
- Ann O'breen
- John O'brein
- Henrietta F O'breine
- Frederick O'breland
- Michael F O'bren
- Agnes O'brian
- Alexander O'brian
- Alice O'brian
- Andrew O'brian
- Andrew O'brian
- Andrew O'brian
- Ann O'brian
- Ann O'brian
- Ann O'brian
- Ann O'brian
- Ann O'brian
- Bernard O'brian
- Bridget O'brian
- Bridget O'brian
- Bridget O'brian
- C O'brian
- Catharine O'brian
- Catherine O'brian
- Catherine O'brian
- Charles O'brian
- Charles O'brian
- Cornelius O'brian