Sarah Ann Ormerod to Ann Orrell - 1911 Census household returns
- Sarah Ann Ormerod to Thomas Ormerod
- Thomas Ormerod to Wilkinson Ormerod
- Will Ormerod to William Henry Ormerod
- William Henry Ormerod to Herbert Ormes
- Herbert Alfred Ormes to Edward Ormesher
- Edwin Ormesher to Mary Ormesher
- Margaret Ormesher to John Ormester
- William Ormester to Eliza Ormiston
- Florence Ormiston to Thomas Ormiston
- Thomas Ormiston to Elizabeth Ormond
- Elizabeth Ormond to John William Ormond
- John William Ormond to Thomas George Ormond
- Thomas Henry Ormond to Caroline Ormondroyd
- Charles Ormondroyd to Joshua Ormondroyd
- Lister Ormondroyd to Albert Ormrod
- Albert Ormrod to George Ormrod
- George Ormrod to James Ormrod
- James Ormrod to John Robert Ormrod
- John William Ormrod to Richard Ormrod
- Richard Ormrod to William Ormrod
- William Ormrod to Frank Ormsby
- Frank Ormsby to W Ormsby
- Walter Ormsby to James Ardern Ormsher
- William Ormsher to Andrew Ormston
- Andrew Ormston to James Ormston
- James Ormston to Lancelot Ormston
- Louisa Ormston to William Ormston
- William Ormston to Thomas Ornrod
- Alfred Ornsby to William Ororke
- Harris Orosky to Thomas Orpe
- Thomas Henry Orpe to John Benjamin Orpeth
- Robert Thomas Orpeth to Edward Francis Orpin
- Edward John Orpin to John Robert Orpin
- Joseph Orpin to Elizabeth Orpwood
- Elli Orpwood to William Henry Orpwood
- William Sipscourt Orpwood to Charles Orr
- Charles Orr to Ernest Orr
- Ernest Orr to Henry Joseph Orr
- Henry Scott Orr to James Edward Orr
- James J Orr to John Edward Orr
- John Gardener Orr to Mary Cawins Orr
- Mary Hannah Orr to Robert Scott Orr
- Robert Wilbey Orr to William Orr
- William Orr to William Thomas Orr
- William Young Orr to Ann Orrell