Alice Truitt, of Accomack

Her antecedents are uncertain, but it is a long hard stretch of probability to assume that she was a sister of Capt. Luke Watson, as he does not seem to have moved that far south before the 1670s.

It is somewhat more likely that she belonged to the Robert/Elizabeth/Peter group of Watsons, who were active in Northampton County, VA by the 1650s.

She presumably died between 1667 (birth of last child) and 1670 (not mentioned in husband's will).

These are just theories and unproven at best. Virginia, U.S., Wills and Probate Records, 1652-1900> Accomack> Wills, 1692-1715> Image 1024. Database and images at Ancestry.com. Image
Will of Thomas Rily, Senior of Accomack, Virginia. Signed 1 August 1696; Proved 1 June 1697.
Bequests to: wife Sarah; son Thomas Riley; son Lawrence Riley; daughter Mary Truitt; grandson James Truitt; daughters Elizabeth, Sarah, Margitt; grandson Thomas Lileston
the Will of James Truitt prove that James and Sarah and James's 3 children from Mary moved to Somerset Co MD. the 3 kids.
Maryland Register of Wills Records, 1629-1999: Inventories: JW 15,1688-1742 - JW 8-9, 1743-1788. Images (unindexed) at FamilySearch.org. Images 62. [1]. Accessed 28 Sept 2019
Inventory of JAMES TRUITT, Senr., of Somerset county
Date: 20 November 1718
Value of estate £67.s.15.d.4
Appraisers: Adam Spence, Price Collins
Accepted by “us the subscribers” George Truitt, Edward Rownd
Witnessed: John Caldwell, Raley Truitt [his mark]