Thanks for that Debbie,
i did find an Emma Farris born in Long Wittenham living with her family in the 1851 census. I'll go back to that to see if her father is William- here's hoping

In 1861 Emma Farris was a servant in Oxford High Street. William, who my Emma Ferris married, was a journeyman tailor in St Aldates Street so that's maybe how they met.

the census records after that were not clear about her birthplace and Ancestry had recorded Long W Han han so it took me a while to find her birthplace.
So maybe i've found My Great great grandmothers family
Thanks again
DJ