Trying to trace Great Grandparents.

Fanny Lea & Thomas William Hall

1881 census Fanny aged 24
Living at Lower Grey Street, West Ham
Est. yr of birth 1857
Born Lydney (but later census suggest could have been Cinderford)

Married to Thomas William Hall
Est yr of birth 1858
Born Lydney

Thomas possibly living in household of James Morse (1861 census) but identification not certain.

Fanny was from a Quaker family (this confirmed by my late father & aunt.)

Family story was that she & Thomas eloped to Gretna Green & then went to live in London.

Have been unable to verify the elopement bit!

Not found any record of Fanny Lea's birth.

Please can anyone shed any light??