Here are some samples from the early 18th century. (SC stands for Settlement Certificate)
The interesting observation here is that people with more specialized skills are moving from farther afield. Richard Cox was a confectioner from London. Anthony Redferne, a victualler, comes from Derbyshire. John Russell, a wheelwright comes from Warwickshire. Some go the other way. Thomas Wilkinson was removed by the parish to St Giles, Cripplegate, presumably from whence he came. There is also a case here (No. 159) where a young woman and child has been moved to Stony Stratford upon a bond of £50 put up by a farmer from Warwickshire. I assume that the child was conceived out of wedlock and may even be the child of the noted Thomas Shiers who wanted the embarrassment out of sight. Something similar may have happened with Elizabeth Knight and child (No 137) who came to Stony Stratford from Nottinghamshire. Possibly she had a relative in Stony Stratford.