Some interesting sites I have found for researching this Dillon Line:

Guilford County [NC] Genealogical Society 

 Guilford County  Register of Deeds 

 The State Library of North Carolina's  

Unclaimed Property Program

Search, find and claim your MissingMoney!

Your Market Place for Genealogy 

 Extra Sources of Dillon's Stuff

Us Gen Web - Stokes

Correspondence from Carla in Virginia