Hello, Claire,
I have not been able to find any 1891 census entry for a Lily or Rose Steers, nor for father Henry, I can tell you they were not living at no 1, Chandler St., St.George in the East.
I have found a 1901 census entry for a Henry W. Steers. Is it possibe he remarried after the early death of Lily's mother. ?
1901 census
RG13/313 folio 105 page 32
50, Johnson St. St. George in the East
Henry W. Steers age 50 Lighterman(Barge) b Bermondsey
Tamar wife age 40 b St. George in the East.
Robert son age 12 b ditto
David son age 11 b ditto
William dau age 8 b ditto
Kate dau age 6 b ditto
I have found marriages for both Lily & Rose in Hastings & their entry in the 1901 census, Lily in Bexhill, Sussex & Rose in Leyton. Do you have this info, if not I can send transcriptions. ?
Hope this is useful
Meliora