Henry and his family were living at Trafalgar Terrace, Long Street, Aston, Birmingham when the daughter Alice was born in 1878 and when Sarah Ann was married in 1882.

The 1881 British Census shows Henry and his family living at 54 Long St, 3 Trafalgar Ter., Aston, Birmingham, Warwickshire:
Henry KNIBBS Head M Male 35 Swarford, Oxford, England Clock Case Maker
Elizabeth KNIBBS Wife M Female 40 Great Barr, Stafford, England
Sarah A. KNIBBS Daur U Female 16 Aston, Warwick, England Dressmaker
Edwin J. KNIBBS Son Male 13 Birmingham Errand Boy
William KNIBBS Son Male 10 Aston, Warwick, England Scholar
Alfred KNIBBS Son Male 9 Aston, Warwick, England Scholar
Alice KNIBBS Daur Female 2 Aston, Warwick, England
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Henry can be seen in 1891 living at 6 Albert Place, Winn Street, Birmingham, Warwickshire, England
Henry Knibbs,Head,M,48,,Clock Case Maker,Employed,Oxford Oxfordshire,,
Lucy Knibbs,Wife,M,,39,,,Henley In Arden Warwickshire,,
Edwin Knibbs,Son,S,23,,Brass Finisher,Employed,Birmingham Warwickshire,,
Alice Knibbs,Dau,,,12,Scholar,,Birmingham Warwickshire,,
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We can see Henry and his wife Lucy at the 1901 census living in Birmingham. The name is wrongly transcribed as RUIBBS:
Henry Ruibbs 55 Oxford Liverpool Birmingham Clock Case Maker
Lucy Ruibbs 48 Warwick Henley in... Birmingham
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Henry and Lucy wee living in Birmingham at the time of the 1911 census:
KNIBBS LUCY F 1851 60
KNIBBS HENRY M 1855 56