I have found a record for Ellen Herbert in Whitechapel Infirmary died 05/12/1882 of what looks like bronchitis and old age but they say she was 79. As for her burial it all depends if she had family that could bury her, if so like dawnsh says it is most likely Tower Hamlets, if not it could be anywhere. Next time I go to LMA I will have a look. Do you know her religion as Tower Hamlets has many different sections to their records, I have spent hours looking for my lot amongst them