Hi Eupham,
Is this 1851 census any help, showing his age and birth place?
1851
HO107/2103 28 26
Barrowby, Lincolnshire
West End
John Colson, head, 34, Ag lab, b. Northampton Southwick
Isabella, wife, 27, b. Lincs Fulbeck
Ann, dau, 7, b. do.
John, son, 4, b. Grantham
George, son, 2, b. Northamptonshire Oundle