OK - this is complicated
From Lancashire BMD
www.lancashirebmd.org.uk1852
Arabella Phibbs to James O'Brian at Liverpool, Our Lady & St. Nicholas & St. Anne registers at Liverpool ref 2053LP/25/450
1861 census 167 Limekiln Lane
Arabella O'Brien 36 widow b Ireland provision dealer
Sarah Fiber (Phibbs) mother 80 widow b Ireland
William O'Brien 8 son b Liverpool
RG9 Piece 2654 Folio 82 Page 24
1871 census 167 Limekiln Lane
Arabella Astick 45 b Ireland marine store dealer
William O'Brien 17 son b Liverpool
William McDonald 23 boarder b Liverpool
RG10 Piece 3761 Folio 17 Page 28
Also from LancsBMD - 1861
John Astick to Arabella O'Brien nee Phibbs at Liverpool, Register Office or Registrar Attended registers at Liverpool ref REG_LP/88/41