Hal, This is what I found about the Adam's of Halifax County:
The following taken from "A History of Halifax County" by Wirt Johnson Carrington, 1924, p102: The Adams family is of Welsh extraction, and the first American ancestorof whom we have any reliable account was John Adams, who came from Wales during the first half of the eighteenth century, and settled in Maryland, whence he came to Virginia. He had three sons, Sylvester, Philip and John. This seconf John Adams came to Halifax County, Virginia, about the time of its organization (1752). He married Susan Wood, daughter of Richard Wood, of Brunswick county, as shown by his will recorded April 24 and proved September 4, 1746, in Brunswick county. Many of the descendants of the Adams family migrated to Tennessee, Texas, Missouri and other States, but Halifax has retained enoughof them to illustrate their honorable and uprightness of character. William Adams, the eldest son of John and Susan (Wood) Adams, was born in Halifax county about 1756; he lived out his days in Black Walnut neighborhood, and died September 10, 1839, aged 83. He was a soldier in the Revolutionary War, and in his old age delighted to recur to the stirring events of that period in which he had participated.