Another member of the family could be a Hawker but posing as a Farm Labourer, because they're located at the Road side. There are also Hawkers in the village.
1841 census:
Location: Road side, Burwash Village
Henry Eastwood, M, Head, age 35, born Sussex; occupation Farm labourer
Ruth Eastwood, F, [Wife], age 35, born Sussex
Henry Eastwood, M, [Son], age 15, born Sussex
James Eastwood, M, [Son], age 13, born Sussex
Mary Eastwood, F, [Daughter], age 10, born Sussex
Thomas Eastwood, M, [Son], age 7, born Sussex
Ruth Eastwood, F, [Daughter], age 5, born Sussex
Harriott Eastwood, F, [Daughter], age 1, born Sussex
1851:
Location: Near Town Gate, Burwash Village
Henry Eastwood, M, Head, married, age 49, born Burwash, Sussex; occupation: Farm labourer
Ruth Eastwood, F, Wife, married, age 47, born Heathfield, Sussex
Henry Eastwood, M, Son, single, age 25, born Burwash, Sussex; occupation: Railway labourer
Thomas Eastwood, M, Son, single, age 17, born Burwash, Sussex; occupation: Farm labourer
Ruth Eastwood, F, Daughter, single, age 15, born Burwash, Sussex
Hariet Eastwood, F, Daughter, single, age 10, born Burwash, Sussex; occupation: Scholar
John Eastwood, M, Son, single, age 5, born Burwash, Sussex
Again, Near Town Gate, suggests they don't have a residence. Perhaps they have a farm though and it's just not described as such.