I think this might be her, with her widowed mother, in 1881; they're at 45 Stoke Newington Road, RG 11 283/23 page 39
Mary Roberts, widow, 57, b. Montgomery Wales, Housekeeper
John, son, 27, b. Shoreditch, Builders Foreman
Ellen, dau, 25, b. ditto, Costumes (Manageress)
Catherine, dau, 23, b. Islington, Mantles (Saleswoman)
William Rus, son, 21, b. Shoreditch, Joiner (presumably is 'William Rees'?)
Grace, dau, 20, b. ditto, Mantles Saleswoman
John Pugh Jones, son in law, 27, b. Cardigan, Commercial Traveller
Margaret Jones, dau, 28, b. Shoreditch
Mabel D Jones, grand-daughter, 3m, b. Stoke Newington
Samuel Jones, boarder, 23, b. Montgomery, Joiner.
And here they are in 1871: RG10/416 71/11, St. Boltoph Bishopsgate
(b. Shoreditch unless otherwise stated)
William Roberts, 51, Carpenters Foreman, b. Caernarvonshire C??
Mary, wife, 46, b. Montgomeryshire Pengos?
Margaret, dau, 18, Tie Maker
John, son, 17, Carpenter's Apprentice
Ellen, dau, 15, Scholar
Catherine, dau, 13, Scholar b. Islington
(next page)
William, son, 11, Scholar
Grace, dau, 10, Scholar
Griffith, son, 7, Scholar