I am Jean (Mosher) Robison and I live in Coffeyville Kansas. My Grandmother was Mariah Doolin (en) born Johnson County Arkansas. Her father was Barton (Burton) Doolin. I have worked on this line for several years and have found the name spelled Doolin, Doolen,Dulin and many different ways.
I have a goodDoolen family friend who writes me from OKC. She spells her name Doolen, but we are still all family.
Hope you will both respond with your family lines.