Quoted from "The Journal of Surry County Genealogical Association, Volume 8, Book 1" (January 1988). Robert Hill found this journal at the Surry Community College Library in 1992.
The page listing the following Smith marriages begins with the following quote:
We realized that most people researching ancestors in Surry County, N. C. also have roots in the close counties nearby. Here are some Early Carroll County Marriages.
I believe this refers to Carroll County, Virginia. Carroll County was formed sometime between 1840 and 1850 (Grayson County was split into Grayson and Carroll Counties), so these marriages probably occurred in what was then Grayson County.
Nov 1830—Ewell SMITH and Drucilla VAUGHTERS. Sur. Adam HALL. Min. Thomas WHITLOCK.
Dec 1834—Ewell SMITH and Marey (Masey) MANKINS. Sur. William MANKINS. Min. Thomas WHITLOCK.
Aug 1836—Fowlkes SMITH and Mary Ann HANBY. Sur. A. A. MOIR. Min. Joshua ADAMS. M. R. 7 Aug 1836.
Mar 1829—George SMITH and Sally SMITH. Sur. Thomas WHITLOCK. Min. Thomas WHITLOCK.