Despite the statement above saying that George Painting married Lucy Annis, I am confident that they did not marry. Lucy and George did however have an illegitimate daughter, Annie Painting Knibbs in 1872, two and a half years after her husband Benjamin Knibbs died.

Lucy's first husband, Benjamin Knibbs, died in October 1869, aged just 27 years. It appears from the records that Lucy had a brief relationship with George Painting, and then in 1873, she remarried to an Edward Walker.

George and Lucy Annis were never married. George and Lucy had a child Annie Painting Knibbs, born in 1872. The 1881 census indicates that George was already married to his wife Sarah with a 2 year old daughter when Annie was born.
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The 1881 census shows George living at Public House, Wiggington, Oxfordshire, England with his wife Sarah and daughter Anne
Public House, Wigginton.
George Paintin head innkeeper and carrier aged 43 born Ledwell
Sarah Paintin wife innkeeper and carriers wife aged 43 born Swerford
Anne M Paintin daur scholar aged 11 born Hook Norton
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George and his wife Sarah had 3 daughters baptised at Swerford.
16 Feb 1862 Harriet Ann
1 July 1866 Alice Mary
6 Feb 1870 Annie Maria
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The record of George's burial in the Parish Register of Wigginton shows that George was the publican of the White Swan public house. He was aged 56 when he died.

Lucy's parents were John (1790-1868), a labourer and Hannah Pratt (1800-1866).
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The 1861 census shows the following at Swerford, Chipping Norton District, Oxfordshire, England
ANNIS, Elizabeth 37 F Chipping Norton
ANNIS, Frederick 1 M Chipping Norton
ANNIS, Hannah 60 F Chipping Norton
ANNIS, John 73 M Chipping Norton
ANNIS, Lucy 22 F Chipping Norton
ANNIS, William 37 M Chipping Norton

John and Hannah were Lucy's parents. William was her older brother, but I'm not sure who Elizabeth Annis was.
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The 1871 census for Oxfordshire and North Berkshire shows Lucy as living at Blue Row, Swerford with her husband Benjamin's cousin William Knibbs and his wife Emily. Lucy's son Frederic is living with her. Her husband Benjamin had died in 1869.
Lucy E KNIBBS 29
Frederic 12
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The 1881 census shows Lucy as living at Wigginton, Oxfordshire with her third husband Edward Walden, and 5 of her 7 children. They are listed under Cottage, Wigginton, with the surname of Walker. I am fairly confident that Walker is a transcription error for the census. All marriage, baptism and burial records are given as Walden.
Edward Walker head gen lab aged 29 born Wiggington
Lucy Walker wife gen lab wife aged 39 born Swerford
Ann Knibb stepdaur scholar aged 10 born Wiggington
Sarah E Walker daur scholar aged 7 born Wiggington
Ellen J Walker daur scholar aged 4 born Wiggington
William G Walker son scholar aged 3 born Wiggington
John Walker son 2 months born Wiggington

The Parish Register for Swerford, Oxfordshire, states "Illegitimate child of Lucy, Swerford, widow"
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Annie can be seen in the 1891 census for Oxfordshire, living at Kidlington.
KNIBBS Annie 19 RG12/ 1173/ 67 Kidlington