Boleslow Ostroski to Alexander Oswald - 1911 Census household returns
- Boleslow Ostroski
- Israel Ostrovitch
- Israel Ostrovitzy
- Abraham Ostrovsky
- Henry Ostrovsky
- Hillel Ostrovsky
- Hyman Ostrowiechi
- Marceline Ostrowski
- Carl Ostrzecha
- Richard Ostte
- Thomas Ostte
- Konrad Ostvig
- Alter Ostwind
- David Ostwind
- Jane Ostwind
- Louis Ostwind
- Michael Osty
- Andrew Osullivan
- Annie Osullivan
- Carrol Naish Osullivan
- Daniel Osullivan
- Dennis Osullivan
- Eugent Osullivan
- James Osullivan
- Jeremiah Osullivan
- John Osullivan
- John Osullivan
- John Michael Osullivan
- Louis Osullivan
- M J Osullivan
- Mary Osullivan
- Michael Osullivan
- Michael Osullivan
- Michael Osullivan
- Michael Osullivan
- Michael Osullivan
- Patrick Osullivan
- Patrick Osullivan
- Patrick M L Osullivan
- Timothy Osullivan
- Timothy Osullivan
- William Osullivan
- Agnes Oswald
- Albert Edward Oswald
- Alexander Oswald