Only ages are written on the census returns.
You have to work out the approximate year of birth yourself!
1851 census, reference HO107, 1643, 304, 20
South Street, South Malling, Lewes
Washer, John Head M 50 Carriers Labourer b Chailey
Washer, Lucy Wife F 48 b Barcombe
Washer, Jane Daughter F 20 b Newick
Washer, James Son M 18 Ag Lab b Newick
Washer, Fanny Daughter F 16 b Chailey
Washer, Richard Son M 12 Carter Boy b Ringmer
Fuller, Lucy Daughter Widow F 26 Pauper Widow of Ag Lab b Barcombe
Fuller, Thomas Grandson M 4 b Lewes
Fuller, Caroline Granddaughter F 2 b Lewes
1861 census, reference RG09, 587, 59, 14
Church Yard, Cliffe Square, St Thomas Cliffe, Lewes
Washer, John Head M 64 Common Labourer b Chailey
Washer, Lucy Wife F 58 b Barcombe
Washer, James Son M 28 Labourer b Newick
Fuller, Lucy Daughter F 36 Laundress b Barcombe
Fuller, Thomas Grandson M 13 Scholar b Lewes
Fuller, Caroline Granddaughter F 10 Scholar b Lewes
Fuller, Fanny Granddaughter F 10 months b Lewes