The quarter of my tree that has proven easiest to follow through on paper trail is from my maternal grandmother, Margaret Jane Henderson (1899-1982), born in Amble. Perhaps this is because she was the one who knew most about her own ancestors so she gave me lots of good clues when I had to prepare a family tree at school when I was eleven.
In the composite picture of my 4 grandparents on the right hand panel of the blog she is at the bottom left.
Here is a snippet showing the first few generations. It is the only section of my tree where I can get to 4th great grandparents with no gaps, and as you can see from the little black arrows I can go even further on 9 lines.
If any of these couples belong to you to then please drop me a line as that means we are cousins.