Hi Nic , To tell you my sources, I use ancestry.uk, Scotlands People, family search uk, rootschat uk, sometimes Gene's reunited.  Over the past seven years I have accumulated a fair amount of information regarding my Kerr roots. The following begins with my grandfather Hugh Wallace Kerr, g.g grandfather  John Kerr, ggg grandfather James Kerr gggg Thomas Kerr, then  gggggg James Kerr 1718 to 1789, gggggg James Kerr 1692 to  1718 ggggggg  another James Kerr.I will try to present any information in a more organised manner, incidentally what is your ancestry. Stoop.