Out of interest, if you saw the William and Rose in 1891 / 1901 - daughters seem to swap names around etc, and some birth records seemed to be missing ...
This explains some of it. The older girls in 1891 were his step dau's - as seen here in 1881 (same chap, correct PoB etc)
1881 - RG11/1714; Folio: 87; Page: 12 - West Ham (Plaistow ?)
Cherry Island, Tent P.
William Scholing [sic] 28 Head Dock Labourer born Essex, Raine [sic]
Rose Hedges 26 Housekeeper Essex, Ongar
Selina Hedges 3 Visitor Essex, Plaistow
Rose Hedges 1 do Romford
still cant find the Olive shown in 1901 tho (born c1886 - has an Index entry too !)