I think there are two families here with similar names.
In 1901 Sybil's family
Walter Douce 30 - 1871 b Blyton Lincolnshire
Mary A 27, 1874, Blyton Lincolnshire
Percival F, 2, 1899, Corringham Lincs
Reginald 0, 1901, Hillsborough Yorks
You may have to have a look at the Lincs family as well
1871 census (FindMyPast) edit: living in Blyton
John Douce 42, 1829, pob NK, lab machinist
Jane 43, b Goxhill (looks like)
Samuel 9 b Goxhill
Mary Jane 6 b Blyton Lincs
Clara 4 b Massingham
Fred 2 b Blyton
Walter 7 mths b Blyton