Elizabeth was born in around 1838, her father was John Harley, a teacher, and her mother was Dorothy.
Elizabeth married Robert Dunn on July the third, 1865.
Elizabeth Harley was the mother of Mary Ann Steward Dunn. Their grandson was to be named Harley (presumably after Elizabeth's maiden name).
in 1871 she was living as a widow at 62 Thames Street, Westoe, South Shields with her two young daughters, Mary Ann Stewart Dunn (4) and Margaret Harley Dunn (2).
Marriage Certificate of Elizabeth Harley and Robert Dunn
She married Robert Dunn (who died between 1869 and 1871).
Her parents were *NOT* Thomas and Margaret Harley.
In 1861 she was seven years old and living with her parents in one half of number three, Denmark Street, Westoe, Durham. Her father Thomas (37) was a master mariner and her mother was Margaret (33). She also had a sister Dorothy I Harley (2). All were born in South Shields, apart from her father who was born in Lamesley in Durham (a village south of Gateshead).
According to the 1871 census (where she was widowed) she was born in around 1838 in South Shields, Durham.
Her maiden name may be Harley, as an Elizabeth Harley married a Robert Dunn in South Shields in Jul-Sep 1865 (S.Shields 10a 732a). Also the fact that her grandson was named Harley Watson might be a bit of a give away.