Charles Ogdon to Alex M Ogston - 1881 Census household returns
- Charles Ogdon to Thomas Ogen
- William Ogendy to Charlotte Ogg
- Christian Ogg to Isabella Ogg
- James Ogg to John Ogg
- John Ogg to Robert Ogg
- Robert Ogg to William Ogg
- William Anderson Ogg to John Ogier
- John Ogier to Ann Ogihy
- Bessie H Ogilby to Agnes B H Ogilvie
- Alex Ogilvie to Alexander G Ogilvie
- Alexander J Ogilvie to Charles Ogilvie
- Charles Ogilvie to David Ogilvie
- David Ogilvie to Francis Ogilvie
- Francis Skelton Ogilvie to George Ogilvie
- George Ogilvie to James Ogilvie
- James Ogilvie to James Ogilvie
- James Ogilvie to Jane Ogilvie
- Jane Ogilvie to John Ogilvie
- John Ogilvie to John Ogilvie
- John Ogilvie to Mary Ogilvie
- Mary Ogilvie to Robert Brodie Ogilvie
- Robert J Ogilvie to W S Ogilvie
- Walter Ogilvie to William Ogilvie
- William Ogilvie to Agnes Ogilvy
- Alexander Ogilvy to David Ogilvy
- David Ogilvy to Janet E Ogilvy
- Jeannie Ogilvy to Robert Ogilvy
- Robert Ogilvy to Andrew Ogle
- Andrew Ogle to George Ogle
- George Ogle to James Wilson Ogle
- Jane Ogle to John W Ogle
- Joseph Ogle to Rodger Ogle
- Samuel Ogle to William Ogle
- William Ogle to George Ogles
- George Ogles to James A Oglesby
- Jane Oglesby to William J Oglesby
- William R Oglesby to Elizabeth Ogley
- Francis Ogley to Thomas Ogley
- Walter Ogley to John Ogrady
- Martha Ogrady to Alex M Ogston