Different family trees give a wide range of birth years for her, from 1719 to 1762.

William Turner and wife Elizabeth Spraggins came to Newberry with the Abney family from Halifax County, Virginia (ref., Annals of Newberry [1859; 2d ed 1892] ] by Hon. John Belton O’Neall, p. 522; also see pp.17, 49-50) . Elizabeth Spraggins was the daughter of William Spraggins and Martha Abney, Martha being the daughter of Dannett Abney and Mary Lee.
William Spraggins was the overseer of Dannett Abney and married his daughter Martha .

There are numerous references to the Turners in The Annals of Newberry by Judge O'Neall, who knew the family.
William and Elizabeth Turner's daughter Ann married her mother's first cousin, Michael Abney (1740-1832) of Newberry, S.C.
Another daughter, Mary Turner Edwards, wife of John Edwards, received 260 acres "on the North side Saluda River, in the fork of Little River and Saluda," in the will of her father William Turner (Annals of Newberry, p. 393). Note: This is not included in the will transcript online. It may be the statement is extrapolated from the Thomas-McCool-Irvin lawsuit against the Thomas Edwards estate.

Thought to be buried at Bush River Quaker Cemetery.

Annals of Newberry (S.C., 1858) by John Belton O’Neall (1793-1863), p. 521: “A short distance below Mrs. Webber’s and nearly opposite…”
p 522: “…Cox’s fishing Place (on the Edgefield side of Saluda) lived the Turners, William and David.

"Their father (William Turner) was a brother of the celebrated Ned Turner, and, I believe, the only one, of a large family of brothers, who did not take part in the Revolution. This subjected him (Ned Turner’s brother ) to the suspicions of both parties, and between the two he had a pretty hard time. He died before the recollection of the writer; but his wife, who was a SPRAGGINS, survived him for a number of years. She kept a great many geese, and fed them from the corn crib every evening. The writer remembers to have seen her, many and many a time, catch two old ganders who were fighting over their food and bump their heads together to make them quit. He remembers her death as well as if it had been yesterday.

“She left four children, two sons and two daughters; William and David, who both died childless; and Elizabeth, who married William Burgess, and also died without issue; and Polly, who married David Peterson. Polly left seven children, four sons and three daughters, all of whom are now dead with the exception of a daughter, Matilda Stephens, of Attala County, Mississippi, and a son, John T. Peterson, with whom, I suppose, most of the grown people in Newberry County are acquainted.”

pp. 17 and 49 tell about William and Elizabeth Turner.

p. 49: “Some few came from Maryland. Of these, William Turner was one of the earliest. He was a native of Maryland. The tract of land granted to him, on which he probably settled, as early as 1751, was granted in 1752. It lies on the east side of Little River, near its mouth, at Long’s bridge.
…Turner’s house was used as a place of defense for himself and his neighbors; (a block house or station, as such places were called) and was surrounded by a stockade. Rising early in the morning, he found a paper stuck in the fork of a peach tree, before his door, with a stone laid upon it. Opening and reading it, he was told, the Indians were on their way, and would soon be in that neighborhood. Whence came the information, he never knew; but it gave him such warning, that by closing the approaches through the stockade, and shutting every body within the house, the danger, imminent and threatening as it was, was
p. 50:
escaped. For as expected, the Indians came, surrounded, and repeatedly fired upon the house; but the height of the stockade compelled them to fire so high, that although their balls penetrated the house, yet they injured no one. The balls in the logs of the house, afterwards called Long’s Old House, remained as a testimony, until it was not many years since taken down. My friend who informed me of these particulars, told me they were shewn to him by the venerable widow of Wm. Turner (who I presume, died in 1810,) and from whom he received the traditions now here embodied.
On this place, lived until her death, within the last five years, the grand-daughter of the first settler, Mrs. Mary Gaskins, the wife of John Gaskins, now of Winter Seat, Edgefield. Her mother, Mrs. Priscilla Long, was the daughter, and I think, youngest child of William Turner. She, and her daughter, Mrs. Gaskins, were both born on this place. The grand-mother, Mary Turner, the mother of Priscilla Long, and the daughter of Mrs. Gaskins, then Mary Long, afterwards the wife of Henry Coate, and after his death, of John Gaskins, all lived on it.”

Recap:
Wm Turner (Sr)
+ MARY (Eliz) Spraggins
Priscilla Turner
+Maj. Benjamin Long
Mary Long
+1 Henry Coate, +2 John Gaskins

Notice that Priscilla is not mentioned on p.522, just two sons and two daughters of William & Elizabeth SPRAGGINS Turner. And the writer says he remembered her and her death well.
On page 49 he says he presumes/believes she (or her husband William Turner died in 1810 (when he was about 16 years old) and calls her MARY. Is this Mary Page Turner, or was he referring to her daughter Mary?
Priscilla Long is named in her mother's will.

A number of family trees on the internet show William Turner Sr. as marrying Mary Page and their children Priscilla Turner Long, Mary Long Coate Gaskins, and William Turner JR. who married Elizabeth Spraggins whose daughter Ann married Michael Abney. So two generations of William Turners are evidently confused.

Elizabeth Spraggins Turner died when Judge O'Neall was 19 or 20 years old, in December 1812. But he spent his lifetime in the Newberry courthouse, studying the available records, researching local history and families, and compiling his history of the county. Mary Page Turner (or her husband William Turner) died in 1810. However, there appears to be confusing or conflicting information about two generations of the Turners on pp 17 and 49-50. Some family trees show William Turner Jr. as marrying Elizabeth Spraggins while some show William Jr. as marrying Mary Page, while yet others show the same William Turner as marrying both Elizabeth Spraggins and Mary Page.

Newberry County, South Carolina: Historical and Genealogical Annals By George Leland Summer, page 335:
"The pioneers came from Maryland or Virginia to South Carolina before the Rev. War, except Robert Edwards who came about 1781. John Edwards married Mary Turner, a daughter of William Turner of the Little River section of Newberry…. Patsy Edwards married ____THOMAS (Samuel S. Miles Thomas) and had children: Edward, Polly, and Elizabeth McCool. Gabriel D. Darlington and David N. Darlington were in Adams County, Ohio, who were, probably, sons-in-law of John Edwards."
page 254: "She was a Turner, the daughter of William Turner and his wife, Miss Spraggins."
page 393: "David Watts and wife, Latiesha, deeded land to John Edwards, including 250 acres originally given by will of William Turner, to his daughter, Mary Edwards."

Elizabeth Spraggins Turner and husband William Turner moved to Newberry, S.C. in the 1770s with with her brothers Nathaniel and William Spraggins Jr. and sister Martha Spraggins Gorman Townsend, along with their Abney cousins.
Nathaniel's son Orsamus Spraggins witnessed two deeds in Newberry Co SC in 1796...one for [his cousin] John Turner 26 Feb 1796 who was leaving property to son David and dau Polly...the other also dated 26 Feb 1796 for [his aunt] Eliz Turner "widow of William Turner deceased" who was leaving to Eliz Turner "daughter to my son John Turner."

Descendancy of Elizabeth Spraggins Turner:
King John of England
+ Isabelle Taillefer
Henry III of England
+ Eleanor of Provence
Edward I, King of England
+ Eleanor of Castile
Joan of Acre
+ Gilbert de Clare
Margaret de Clare
+ Hugh Audley
Margaret Audley
+ Ralph Stafford
Katherine Stafford
+ John Sutton III
John Sutton IV
+ Joan
John Sutton V
+ Constance Blount
John Sutton VI
+ Eliz Berkeley
Eleanor Sutton
+ George Stanley
Anne Stanley
+John Wolesley
Ellen Wolesley
+ George Abney
Edmund Abney
+ Catherine Ludlam
Paul Abney
+ Mary Brooksby
George Abney
+ Bathusa Dannett
DANNETT ABNEY
+ Mary Lee
Martha Abney
+ William Spraggins
Elizabeth Spraggins, Newberry, S.C.
+ William Turner