I wonder whether this 1901 census is relevant :
Josiah Collar 55 born Essex, London
Mary Parks dau single 30 born West Norwood, Surrey
Ernest Parks son 1 born Penge, Surrey
Alice Parks dau 2 b Beckenham, Kent ( this is a transcription error - she was 2 months old ).
address : 118 Alexandra Cott, Beckenham , Kent
Alice is also in an Institution in Lambeth in 1911.