Trying to avoid going to far off topic, but I have directline ancestors born in, excluding London (City of London, Middlesex and Metropolitan Surrey), Berkshire, Buckinghamshire, Cambridgeshire, Essex, Hertfordshire, Kent, non-metropolitan Surrey, Wiltshire, Somerset, Oxfordshire, Gloucestershire, Suffolk, Norfolk, Lincolnshire, Warwickshire, Worcestershire, Bedfordshire, Dorset, Northamptonshire, Rutland, Durham (well Gateshead and possibly over border into Newcastle), and Fife (my sole Scottish line). One line in Somerset is rumoured to be from Monmouth but no conclusive proof yet, others likely to be from Huntingdonshire and Leicestershire but struggling to view the registers to confirm as they were in neigbouring counties on the border and disappear. I also have others born outside of London who migrated in well before the Census whose surnames are predominantly found in the north of England, namely Yorkshire, Northumberland and Cumbria so chances are there are some there. I have one germanic ancestor who arrived in London in the early 1800s but died in 1833. We don't know where he was from but he signed his marriage Johan and was, at one point, a sugar baker, something many German immigrants did before moving into other professions. I have four separate Huguenot and Walloon lines and a possibly a Scandinavian emigrant born in the late 1600s but we're unsure where he was from. In the case of the latter, the clue is in the surname which isn't from any of the home countries and not a corruption of an known "British" surname, its most likely Scandinavian in origin.
I should also mention that all my grandparents and great grandparents were born in London (if you include 1870s Plaistow as London, albeit I think it was still Essex then), but after that one grandparent's ancestors all migrated into London in the early to mid 1800s, but on the other three grandparent's lines there is a mix of some born in London before the Census and a few who migrated in the early 1800s. There are a few we've managed to trace because of unusual surnames even though they were born and died prior to the Census.
So, as you can see, a wide selection of places and the possiblity of ancestors from other counties when the records become more easily available to view.
