Find Ancestors

I have come to that proverbial brick wall here and although I have had a lot of help from the lovely helpers on this site I would love to see if anyone could help me out here. I have found her line from her date of birth in Maidstone and then her move to London up till 1891, where I found her with her son Leonard and her youngest son, Albert James Jeffreys (Elizabeth married James Jeffreys in 1871 and they had 6 children) James committed suicide in Maidstone in 1884, just 6 days after Albert James was born and shortly after this Elizabeth moved the family to Newington in London. In the 1891 census she was living there with her sons Leonard and Albert James, also a baby girl who died shortly afterwards. In the 1901 census I found Albert James aged 17 years living with his eldest brother, William James in West Ham. As Albert James could have moved at any time from 1891 until 1901 I though his mother could have either died or remarried but could not find her on the Marriage or Death Records. I thought she may have had to have gone into a workhouse but have a death certificate which is definitely not her. I have only seen one death record for a Elizabeth Charlotte Jeffreys and it was not her, either her age or district. Could anyone let me know if there would be any other place I could look for Elizabeth, I would be so grateful