Here is my list of the Saunderson/Given Ancestors as far back as I can find them so far. 

As you will see, it is often the first names that carry on through history - although there are many James, William, Elizabeth and Marys where new parents named their children after themselves and their own parents/grandparents. The exotic sounding Hanse Stevenson (it's a variation of John!) made it easy to spot some of the links, and I did not enjoy tracking the McPheators (or McPheator, McPheaton, McPheatous, McPheater, McPheatis, McFeetor, McFedries, McVeeters, McFesters!!) who made it a bit more of a challenge...

So far, I am back to 10 generations on some lines - and if I could name all of them there would be 8190 people on this page who are our direct ancestors, over about 300 years. (There is a spreadsheet attached under Files, in the Media Tab above which might be useful if you want to pick out names/dates.)

If I could dig deep enough, we all must be related to each other - 10xGreat Grandparents = 2048 couples who had children, who had children, who had children etc etc. If there were an average of 3 children each (and there were frequently families of 10 or 12 kids) then by the time we get to us that is 3,265,173,504 individuals, or about 50x as many people as currently live in the UK!

Enjoy the read!