Mary (Flood) Briggs - Disputed origins

There’s debate at https://www.wikitree.com/wiki/Flood-75 on her origins.

In the comments:

According to Adventurers of Purse and Person, Virginia 1697-1624/5 by John Frederick Dorman, C.G., F.A.S.G. John Flood and Margaret Finch did not have a son John or daughter Mary. I think they should be disconnected unless someone has sources to prove otherwise.

There a number of references to Mary Flood, daughter of John Flood and Margaret Finch. Here is a document that indicates that Mary Flood married John Washington. Who is this Mary if not John Flood’s daughter.

"John Washington, a merchant of Surry County, Virginia, entered into a prenuptial agreement with the widow “Mary Ffoord” dated November 15, 1658: Bee it known unto all men by these presents, yt whereas a Contract of matrimony is agreed upon between mee Jno Washington, & Mary Ffoord widow, I ye sd Washington ffor divers good Causes & Considerations, mee thereunto moving doe before ye Celebration & Slemnization thereof, by these presents Ingage & oblige my self, my heires, executors, Administrators or Assignes, to give & deliver, or Cause to be given & delivered unto Robert Stanton Clarke, ffeoffe, in trust, one mare ffilly, of one year old, to & ffor ye sole use & behoofe of Tho: blunt, sonne of ye sd Mary, his heires executors, Administrators & assigns, with male & female Increase ffor Ever, wch ad mare ffille is to be delivered as above sd ye day yt ye sd Tho: Blunt shall attain to ten years of age, in Surry county, & further I ye sd Jno Washington Doe hereby oblidge my self, to acknowledge this my reall & voluntary act, & deed, in ye next Court, to be holden ffor ye County of surry, & to have it recorded accordingly, in ye sd Court records, witt: my hand & seal Dated ye 15th day of 9ber stilo Anglia ano: domeni 1.6.5.8.

Signed sealed & delivered in ye presence of us – Jno Flood Ben: sidway Edmund Shipman Jno Allam Tho: fflood John Washington (sealed in red wax) (Copy Teste: S.B. Barham, Jr. Clerke.)

It is explained in Adventurers and Persons on page 996 that Mary “fford” was misread as Mary “floord”. Is there another source that shows she is the daughter of John Flood. According to Purse and Person, John had three children, Thomas, Jane, and Walter.

At https://www.wikitree.com/wiki/Flood-101

Other speculative children:

Mary Flood. She is first noted in 1650, when she was sponsored for transport from England to Virginia by Capt John Flood, Gent., and John Flood, of James City County.[10] (They also sponsored several other persons that year.[10]%29 It has been inferred that Mary was his daughter with Margaret, who had been sent to England for schooling and was being brought back to Virginia. (Possibly she was sent after her mother died, partly to help care for her.)[2] More recent review suggests she was not their daughter.[7]

2. “Virginia Historical Genealogies”, by John Bennett Boddie, (Pacific Coast Publishers, Redwood City, 1954). p.301-303. Available at https://babel.hathitrust.org/cgi/pt?id=wu.89062947908&view=1up&seq=321

10. “Early Virginia Immigrants 1623-1666”, by George Cabell Greer, (Genealogical Publishing Co, Baltimore, 1982). p.116. Available at https://babel.hathitrust.org/cgi/pt?id=uva.x002706133&view=1up&seq=9

https://babel.hathitrust.org/cgi/pt?id=uva.x002706133&view=1up&seq=124

116 EARLY VIRGINIA IMMIGRANTS

Flood, Mary, 1650, by Capt. John Flood, Gent., and Jno. Flood, James City Co.

7. "Adventurers of Purse and Person, Virginia, 1607-1624/5. Fourth Edition, Volume One, Families A-F", by John Dorman. (Genealogical Publishing Company, 2009). See pages 995-996.