more...
1841 Census: Aveton Gifford, Ermington Dev
BASSET Michael M 30 Ag Lab Devon
BASSET Jamima F 30 Devon
BASSET William 8 Devon
BASSET Ann 6 Devon
BASSET John M 1 Devon (likely to be your John?)
living next door was...

1841 Census: Aveton Gifford, Ermington -Devon
CHUDLEY Betsey 40 Devon
CHUDLEY Elizabeth 25 Devon
CHUDLEY Betsey 9 Devon
CHUDLEY Mary 6 Devon
CHUDLEY Thomas 4 Devon
CHUDLEY Sarah 1w Devon

nearest for a likely John Bassett (father) is...
1841 Census: Burland, Marwood, Braunton-Devon (nr Barnstaple)
OATWAY Ann 20 Ind Devon
BASSET John M 20 M S (male servant) Devon
SYMONS Mary F 10 F S Devon

Marriages Dec 1843
Bassett John & Hussell Hannah Barnstaple 10 78

1851 Census: Bell Meadow, Barnstaple, Devon
John BASSET Head M 30 M Horse Keeper Oak Hampton-Dev (Okehampton, was possibly where he was last working...)
Hannah BASSET Wife M 31 F Marwood-Dev
Aaron BASSET Son 9 M Marwood-Dev
Ellen BASSET Daur 6 F Barnstaple-Dev
Wm. BASSET Son 3 M Barnstaple-Dev
Mary BASSET Daur 1 F Barnstaple-Dev
Hope it is of further help.Sue