O'BRIEN PROFILES:
- Ann May Childs/Moon (nee O'Brien)
- Barbara O'Brien
- Charles O'Brien
- Colleen O'Brien
- Doreen O'Brien (nee Madsen)
- Ellen O'Brien (nee Roberts)
- Eugene O'Brien
- George Cashel O'Brien
- Gerald Cashel O'Brien
- Grace O'Brien (nee Morris)
- Johanna O'Brien
- John Michael O'Brien
- John Patrick O'Connell O'Brien
- John Wilfred Eugene O'Brien
- Julia O'Brien (nee O'Connell)
- Julie Newey (nee O'Brien)
- Kathleen O'Brien
- Madeleine O'Brien (nee Madsen)
- Maire O'Brien
- Martin Casey O'Brien
- Mary Mahoney (nee O'Brien)
- Nellie O'Brien
- Sarah Ellen O'Brien
- Thomas O'Brien, Police Sergeant
- Thomas O'Brien, soldier
- Wilfred O'Brien
- William Cashel O'Brien
- William Joseph O'Brien
- William R O'Brien- teacher
- William R O'Brien - soldier
- O'BRIENS in WA