Walk Blevins of Cherryvale Kansas

Just looking for my Grandfathers name and relatives starting from Cherryvale, Kansas. How far can we go back to trace his family name. Can we go back to England? I have found that we are welsh. So maybe we go back to Wales? My fathers name was Joseph Walk Blevins. He had three brothers. I remember Craig and Herbert. I do have a cousin who lives in Tennesee but I lost her email address and phone number. Her name is Venita Jo Blevins. So if you see this Venita email me....Jo Ann