Thank you for all the ideas.
We have found Ann Townson on the 1881 census on FamilySearch, at 14 Quay St Manchester, an address we also have on her daughter's birth certificate in 1884, and her birth place is shown as Denbigh, Wales. We tried to find a birth/christening for her, as Ann Jones, father Richard Jones, in 1840 =/- 5yrs, for Denbigh, Wales, and found 2 options, both in 1835, a bit early from her given age on later census and certificates. However, one place was Llandyrnog, (for an Ann without an 'e'), and the other was Llansilin, Denbigh, (Anne).
Not sure if all this helps or not, but any advice still welcomed. Thanks again
2deebees