Ann Orrell to Samuel John Orvis - 1911 Census household returns
- Ann Orrell to Ellen Orrell
- Ellen Orrell to Herbert Orrell
- Herbert Orrell to John Orrell
- John Orrell to Joseph Orrell
- Joseph Orrell to Richard Orrell
- Richard Orrell to Thomas Orrell
- Thomas Orrell to William Orrell
- William Orrell to Mary Ann Orrels
- Bertie Orren to John Orrey
- John James Orrey to Christopher Orridge
- David Orridge to William Orridge
- William F Orridge to Bertha Orrin
- Charles Orrin to William Orrin
- William Alexander Orrin to Samuel Orris
- Samuel Orris to George Orriss
- George James Orriss to Sarah Orriss
- Thammar Orriss to John Orritt
- John Orritt to Robert Jeremiah Orrock
- Robert W Orrock to Arthur H Orsborn
- Charles Orsborn to Frederick William Orsbourne
- George Orsbourne to George James Orsman
- Harriet Orsman to Thomas Hayes Orson
- William Orson to Clara Elizabeth Ortins
- Wilkelm Ortivia to Alfred Orton
- Alfred Orton to Arthur Orton
- Arthur Orton to Charles Orton
- Charles Orton to Edward Orton
- Edward Orton to Emma Orton
- Emma Orton to Frederick Orton
- Frederick Orton to George Henry Orton
- George Herbert Orton to Henry Orton
- Henry Orton to Isaac Orton
- Isaac Orton to Jesse Orton
- Joe Orton to John Orton
- John Orton to John William Orton
- John William Orton to Legh Charles Orton
- Leigh Leyland Orton to Matilda Orton
- Matthew Orton to Robert Orton
- Robert Orton to Thomas Orton
- Thomas Orton to Thomas Edward Orton
- Thomas Isaac Orton to William Orton
- William Orton to William Orton
- William Orton to Sara Ortony
- Thomas Ortor to Robert Orum
- Thomas Orum to Samuel John Orvis