OK, so my initial Roper 1851 find was wrong (sorry!), and this is the boy in 1851:
1851
HO107/2140 110 7
Castle Donnington, Leicestershire
Clap-Gun Street
John Smith, head, 31, Boatman
Hannah, wife, 27, Lace Embroiderer
George, son, 9, scholar
Lucy, dau, 7, scholar
James, son, 2, scholar
All born C Donington