Marraige 10 Nov. 1872 at Christ Church, Sparkbrook, parish of Aston, Warwickshire
Henry KNIBBS full age, bachelor, a boatman, of Henley Street son of Edward KNIBBS a boatman
Rosannah DIMMICK full age spinster same address, father William Dimmick , deceased, a boatman.

From the PR transcript for Banbury, it appears that Henry was born on a boat on the canal. He died aged 76 years in the district of Daventry, Northamptonshire, England. Henry's age at death matches precisely with the year for which this Henry was born.
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We can see Henry in the 1881 census, living at 1 Boat Albion Wharf, Hemel Hempstead, Hertford, England:

Henry KNIBBS Head M Male 36 London, London, Middlesex, England Captain Of Boat
Roshannah KNIBBS Wife M Female 26 Stoke Prior, Worcester, England
Thomas H. KNIBBS Son Male 6 Ratford, Warwick, England
Edward KNIBBS Son Male 4 Braunston, Northamptonshire, England
Fanny KNIBBS Daur Female 3 Braunston, Northamptonshire, England
William KNIBBS Son Male 1 Braunston, Northamptonshire, England
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In 1885, his youngest son James Arthur was born abourd the boat Harriet.
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We can see Henry and his youngest son Henry in the 1901 census return:

Henry Knibbs 64 London St Luke London St Luke Captain Of Canal Boat
Henry Knibbs 18 Warwick Braunston London St Luke Boatman Canal

His wife Rosannah was living with their son Thomas and his family at Water Eaton, Buckinghamshire, England

Rosehannah may well have been baptised as Hannah, and her surname maybe Dimmock and not Dimmick.

Sadly, she died from Pneumonia aged just 49. her death was registered by her daughter, Fanny Garner.