Me the genealogist.
Knowing that my grandparents were born in Bolton, I set about building my family tree. I traced back to John Selby married to Alice Hutchinson, who were the parents of Joseph Selby born in Bolton in 1799. Unfortunately, John seemed to have appeared out of thin air, so I tried Alice Hutchinson, who was born in Bolton and found that her father also had no local birth record. So where had these Selby’s and Hutchinson's come from? Exhaustive checking of the IGI Genealogical collection found possibilities for both in Northumberland. I found a match for her Alices' father, Thomas born in Halton Northumberland and two possible entries for John Selby’s birth, one in Earle, Northumberland and the other in Rothbury. The one Earle in died in infancy that just left the one born in Rothbury, but why would he go to Lancashire when he appeared to be born of an ancient and well to do Northumbrian family? Why indeed.