1881 Census households from Joseph O Harrow to John O'Brien
- Joseph O Harrow to Moses O Keef
- Arthur O Keefe to Jeremiah O Keeffe
- John O Keeffe to Thomas O Lachlin
- John O Larry to Jeremiah O Leary
- Johanah O Leary to Thomas O Leary
- Timothy O Leary to Charles O Malley
- Charles O Malley to John O Mara
- Michael O Mara to John O Neal
- John O Neal to Bernard O Neil
- Bernard O Neil to George J O Neil
- Hannah O Neil to James O Neil
- James O Neil to John O Neil
- John O Neil to Patrick O Neil
- Patrick O Neil to William O Neil
- William O Neil to Charles O Neill
- Charles O Neill to Ida O Neill
- J H O Neill to Joseph O Neill
- Julia O Neill to Peter O Neill
- Peter O Neill to James O Niel
- James O Niel to Thomas O Niell
- William O Niell to William O Reilly
- William O Reilly to James O Rourke
- James O Rourke to Hannah O Shea
- James Michael O Shea to Maria C O Sullivan
- Martin O Sullivan to Peter J O' Hanlon
- Michael O' Neile to John O'Boyle
- John O'Boyle to Cornelius O'Brian
- Cornelius O'Brian to Johanna O'Brian
- John O'Brian to Mary O'Brian
- Mary O'Brian to Thomas O'Brian
- Thomas O'Brian to Andrew O'Brien
- Andrew O'Brien to Catherine O'Brien
- Catherine O'Brien to Daniel O'Brien
- Daniel O'Brien to Edward O'Brien
- Edward O'Brien to Ellen O'Brien
- Ellen O'Brien to Henry O'Brien
- Henry O'Brien to James O'Brien
- James O'Brien to James O'Brien
- James O'Brien to Johanna O'Brien
- John O'Brien to John O'Brien