3 Centuries of separation?

My mother in law has a super file she has lodged with us of her discoveries of the background of her family tree. This goes right back to the C17th and the first co-incidence was that despite her family being in Halifax, West Yorks area for decades and decades, and that is where we are from too, we now live toward the North Yorks border and her family actually came from over this way - Brayton and then Church Fenton area. Next, the earliest couple she can find were married in the same church in Brayton in South Selby that my friend had just been given as his first Parish as he progressed from our local Church. And thirdly, in my retail business at all around the same time I had met a young lady who had joined my mailing list who it turned out lived in Brayton - but the co-incidence was that her surname was the same as the lady of the couple who were married at Brayton church - I asked this young lady if her family was long time in Brayton and she said 'No they were from Halifax.....' as far as we know we are actually not related but how strange!!