1763 William Pickett, perhaps this one, was baptized (so likely over age 12) at the Broad Run Baptist Church in Fauquier County, Virginia. He was dismissed to Loudoun. [1]
1778 Wm. Pickett was granted 340 acres in Fauquier County, Virginia. [2]
1780 Wm. Pickett was granted 420 acres in Fauquier County, Virginia. [3]
1792 William Pickett, perhaps this one, could be noted in this newspaper citatation for Fauquier County: "Delegates to next gen. assembly: Fauquier - Wm. Pickett and Charles Marshall, esq." [4]
A biosketch is given in [5]
[1] Richard Slatten, "The Early Records of Broad Run Baptist Church, Fauquier County, Virginia, 1762-1783," Magazine of Virginia Genealogy (Genealogical Society Quarterly) 26 (1988), 284-96, at 287, [Ancestry_VGSQ].
[2] William Armstrong Crozier, Virginia County Records, Vol. 6 (New Jersey: 1909), 90, [InternetArchive].
[3] William Armstrong Crozier, Virginia County Records, Vol. 6 (New Jersey: 1909), 91, [InternetArchive].
[4] Newspaper, Bowen's Centinel and Gazette - Winchester Political Repository (Frederick County, Virginia), Volume 5 #214 Monday May 7, 1792.
[5] Rosemary B. Hill and Dixie J. Clark, A Gathering of Picketts, Vol. 1 Virginia & Kentucky (self-published, 1998), 211, [GoogleBooks].