A Martha Williams was transported to Virginia prior to 29 November 1665, the year that George Dillard patented 250 acres in New Kent County (later King and Queen County when created in 1691), Virginia for transporting five persons including Martha to the county. 
The patent was for a headright grant for transporting
Martha Wms. (Williams),
Unproved Marriage to George Dillard
Popular genealogies often show Martha Williams married to George Dillard. While there is a record showing that George Dillard had a wife, there is no documentation as to whom she was. The only possible source currently known for the impression that Martha Williams was married to George Dillard is the 1665 patent. However, the patent also names a Margaret Williams, who might be Martha's sister, so George could as easily be the husband of Margaret or anyone else.
Original Unsourced Gedcom Material
All of the material below should be considered unsourced, being derived only from an Ancestry.com database.
↑ Nugent, Nell Marion. 1963. Cavaliers and Pioneers: Virginia Land Patents and Grants 1623-1660 Baltimore: Genealogical Pub. Co., 1963, originally Richmond, Virginia, 1934. Volume 1, p 541, Patent Book 5, p.456.
↑ 2.02.12.22.32.4 Ancestry.com. Database online. Data: Record for James Stephen Dillard. Record for Nicholas Dillard
↑ 3.03.13.2 Ancestry.com.
Database online. Record for George Dillard
WikiTree profile Williams-10863 created through the import of Bowden-Riley Family.ged on Apr 16, 2012 by Sam Bowden. See the Changes page for the details of edits by Sam and others.