Here's the 1921 census for good measure:
: Cornelius John Smith Head M 47 Anstey, Leicestershire, England Fitter Up In Boot Trade Granite Boot Co, Boot Manufacturers
: Nellie Elizabeth Smith Wife F 48 Glenfield, Leicestershire, England Household Duties, Hosiery Mender Roe & Peberdy Ltd, Hosiery Manufacturers
: Cornelius John Smith Son M 24 Anstey, Leicestershire, England Shoe Finisher Boot Trade Granite Boot Co, Boot Manufacturers
: Percival Owen Smith Son M Single 21 Anstey, Leicestershire, England Shoe Clicker Boot Trade Granite Boot Co, Boot Manufacturers
: Rhoda Lilian Smith Daughter F 19 Anstey, Leicestershire, England Hosiery Machinist Roe & Peberdy Ltd, Hosiery Manufacturers
: Sylvia Sarah Smith Daughter F 16 Anstey, Leicestershire, England Hosiery Machinist Roe & Peberdy Ltd, Hosiery Manufacturers
: Nellie Geraldine Smith Daughter F 10 Anstey, Leicestershire, England
: Julia Gwendoline Smith Daughter F 7 Anstey, Leicestershire, England
It looks like his sisters Nellie and Julia are mixed up with the middle names.
* '''1921 Census''': "1921 Census Of England & Wales"<br/>Archive: The National Archives; Series: RG 15; Piece number: 14943; District reference: RD 406 RS 2 ED 1<br/>[
https://search.findmypast.co.uk/record?id=GBC%2F1921%2FRG15%2F14943%2F0645&parentid=GBC%2F1921%2FRG15%2F14943%2F0645%2F04 FindMyPast Image] - [
https://www.findmypast.co.uk/transcript?id=GBC/1921/RG15/14943/0645/04&expand=true FindMyPast Transcription] (accessed 1 April 2024)<br/>Percival Owen Smith (21), single son, Shoe Clicker Boot Trade, in household of Cornelius John Smith (47) at 2, Boundary Road, Mountsorrel in Barrow upon Soar registration district in Leicestershire, England. Born in Anstey, Leicestershire, England. Employed by Granite Boot Co, Boot Manufacturers.
Edit: I've changed the profile's middle name.