In 1851, not long after John married Mary Knibbs, he could be seen living in the village of Stonesfield, Woodstock, Oxfordshire at the home of his aging parents. Mary was living with her mother in Charlbury, Oxfordshire.
John Barrett head Mar 75 Pauper Oxon Stonesfield
Ann Barrett Wife Mar 69 Pauper Oxon Radford
John Barrett Son Mar 35 Ag Lab Oxon Stonesfield

At that time, Mary can be seen living at Charlbury with her mother and daughter Sarah Ann, then aged 5.
Sarah KNIBBS Head 64 Saddlers Widow Oxon, Charlbury
Mary Ann Barrett Dau 29 Milliner Oxon, Charlbury
Sarah Ann Barrett Gr Daughter Oxon, Charlbury
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We think this is John at 1881, having been widowed prior to 1881. His son Ebeneezer was living at Charlbury with Ann Knibbs, Ebeneezer's aunt:
Joseph BARRETT Head M Male 50 Stonesfield, Oxford, England Woodman
Sarah Jane BARRETT Wife M Female 55 Stonesfield, Oxford, England Gloveress
Joseph BARRETT Son U Male 18 Stonesfield, Oxford, England Farm Labourer
John BARRETT Lodger W Male 64 Stonesfield, Oxford, England Woodman

We can see Ebeneezer living with his aunt Ann Knibbs in 1881 at Marketr Street, Charlbury, Oxfordshire. Ebeneezer's mother Mary Knibbs was born in Charlbury. We suspect that she died prior to 1881.
Ann KNIBBS Head W Female 73 Marlow, Buckingham, England Sadler
Ebeneezer E. BARRETT Nephew U Male 26 Stonesfield, Oxford, England Journeyman Sadler
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Interestingly, we can see Ebeneezer still living at Charlbury in 1901:
Ebenezer E Barrett 45 Oxon Stonefield Oxon Charlbury Saddler