I've some Izzard's, but mostly from Sussex.However I did a quick search on the London 1881 census and came up with the following two entries that may be of some interest to you.
Film 1341106 96 White Horse Lane, Mile End Old Town, London
Mary A. Izzard - Widow age 41 b. Spitalfield, Middlesex Benjamin - son - age 20 b. Whitechapel, Middlesex Louisa - dau. - age 18 b. Stepney William - son - age 16, b. Stepney Emily - dau. - age 8, b. Stepeny Frederick - son - age 11, b. Stepeny Susan - dau. - age 6, b. Stepeny Lousia Bartlett - grand dau., age 3, b. Stepeny
136 Old Montague St., Whitechapel, London James Shore - Retired Brewer, age 83, b. Stepeny Matilda Izzard - grand Dau., age 5, b. Stepeny
If you ordered a birth certificate for Matilda you would be able to confirm her parents and her mothers maiden name.