Nancy Thomas d/o William Thomas married in Bedford Co, VA, could still be a different William Thomas. I see Thomas neighbors in Botetourt Co, VA, 1840 who I do not recognize...
"Abstract Botetourt County VA will bk. K Page 237
Nancy Reed (widow) born ca 1777 died 1858. Father William Thomas (died by 1858 named in the will) Ch: Catherine m Samuel Crawford, Mary m Newton Switzer, Bevaline m Beverly Tucker ( their daughter Mary) Eliza m Andrew Reid. Ann m Geo. W. Caldwell, Fredrick, Jacob m Susan, John has died. Late husband Jacob Reed."
http://wc.rootsweb.ancestry.com/cgi-bin/igm.cgi?op=GET&db=gfranklin&id=I7355
Children:
Eliza REED
John REED
Ann REED
Fredrick REED
Jacob REED b: ABT 1811 in VA
Mary Elizabeth REED b: 17 JAN 1815 in Botetourt County, VA
Bevaline REED b: ABT 1816 in VA
Sarah Catherine REED b: 10 JUN 1823 in VA
=> large family by 1810 in Botetourt Co, VA