I think this is the family in 1891, they have been transcribed with the family above them on Ancestry, but the image shows them as Gibbs. William isn't with them.
RG12 Piece number 589 Folio 14 Page 21
Lambeth Road, Croydon
Emma Gibbs Wife Married Female 32 Laundress Croydon
Robert Gibbs Son 12 Scholar Croydon Transcription
Amelia Gibbs Daughter 9 Scholar Croydon Transcription
James Gibbs Son 6 Scholar Croydon
Daisy Gibbs Daughter 3 Croydon Transcription
Fred Mann Lodger Single 27 Iron Moulder Lincoln
Sorry Liz, missed your post. I don't know why Ancestry has them in Christchurch, it is clearly Croydon!