Thomas Oldham to Clara Olive - 1881 Census household returns
- Thomas Oldham to Thomas Oldham
- Thomas Oldham to William Oldham
- William Oldham to William Oldham
- William Oldham to William Oldham
- William Oldham to Charles Oldhamstead
- William Oldhamstead to Fredrick Olding
- George Olding to John H Olding
- John Henry Olding to William Olding
- William Olding to Richard Oldknow
- Richard Oldknow to George Oldle
- Hannah Oldmam to James Oldman
- James Oldman to Thomas Oldman
- Thomas H Oldman to Caroline M Oldran
- Mary Oldread to William Oldrey
- William Oldrey to James Oldridge
- James Oldridge to Thomas Oldridge
- Thomas Oldridge to Alfred Oldroyd
- Alice Oldroyd to Charlotte Oldroyd
- Christopher Oldroyd to George Oldroyd
- George Oldroyd to Israel Oldroyd
- J Shaun Oldroyd to John Oldroyd
- John Oldroyd to Joseph Oldroyd
- Joseph Oldroyd to Matthew Oldroyd
- Matthew Oldroyd to Thomas Oldroyd
- Thomas Oldroyd to Agnes Olds
- Charles Olds to John M Olds
- John T Olds to Harriet Oldship
- William Oldsker to Mikle Oleary
- Patrick Oleary to John Olested
- Edward Olett to William Olford
- Joseph Olfrey to Thomas M Oliff
- Thomas W Oliff to Ann Oliphant
- Ann Oliphant to George Oliphant
- George Oliphant to James Oliphant
- James Oliphant to John Oliphant
- John Oliphant to Mary Oliphant
- Mary Oliphant to Thomas Oliphant
- Thomas Oliphant to Donald Henry Olison
- Edward Oliton to Richard Olivant
- Samuel Olivant to Clara Olive