There is much too much material to either post it all here or even to send it to you via Smail. But if you tell me specifically what you are interested in involving these surnames, I will be happy to tell you what I know.
Most of my knowledge is of the Rankins and how they inter-relate with the Abernathys and the Witherspoons. So if you will tell me just who, what, where, when . . . .of your line, I will fill in where I have information.