sorry Rosie, and thanks Jacques for finding him in 1871 (RG10; Piece: 1056; Folio: 13; Page: 18)

just one more sibling shown for Horace in the 1881 census, when the family was in Withyham - Alice born c1872, Withyham
Horace is also in Withyham, working on the Page Farm (Farmer Of 78 Acres Employing 1 Man & 1 Boy)
RG11; Piece: 1056; Folio: 9; Page: 12
In 1891, he is lodging in Chiddingstone (his mothers PoB) with a Boorman family - RG12; Piece: 675; Folio 101; Page 18
By 1901 he has joined the Police Force, is married with a young family and is in Hammersmith, West London.
Marriages Dec 1894
Card Elizabeth Sevenoaks 2a 1160
Stone Horace Sevenoaks 2a 1160
1901 RG13; Piece: 46; Folio: 166; Page: 85 South Hammersmith - 53, Southerton Road
Horace Stone 36 Head of Household, born Kent, Leigh: Police Constable
Elizabeth Stone 34 Wife born Kent, Penshurst
Mary E Slane 4 dau born Hammersmith
Horace S Stone 3 son ditto
Florence G Stone 2 dau ditto