Yes, Elizabeth and her husband Samuel Rutherford and family were there on the 1891 census.
In 1891 Mary's widowed sister Caroline Smith (who was the informant on John's death certificate) was age 73, living on own means, at 2 Reginald Road, Deptford; she died in 1894. It seems strange to me that, if she were still alive, Mary was not with Caroline.
In 1901 Elizabeth and Samuel and their family were in Lucas Street, Deptford. Sadly, Samuel died later that year.
In 1911 Elizabeth was with her daughter Agnes's family in Guildford Street, Greenwich.
When she died in 1914 she was living in Revelon Road, Brockley.