We know that Ninian Beall married a woman named Ruth. No credible documentation has been found regarding her birth place or parents.
Warning: Multiple Undocumented Sources!
Fielder M. M. Beall  gives her dates as 1652-1707 and her last name as Moore. daughter of Richard Moore of Richard Moore, Barrister of Saint Mary's County, and his wife Jane. No good sources have been found to confirm this. Regrettably, Fielder Beall's work, which has many errors, provides no documentation for this.
Ruth's surname name at birth is sometimes shown as Moore  No original sources have been found to confirm this.
Geni  presents the following information, none of which is documented with any source:
Please do not add information to this profile from these sources or from any sources which do not provide credible documentation.
Ruth is known only as the wife of Ninian Beall. No details have yet become available regarding her birth year, her birth name, or her parents.
Based on a statement of Ninian's in 1669 that he is now a married man, if she were aged 19 at the time her birth year would be 1650.
Ninian Beall's land transaction on 20 Sep 1668 must have been one of his last as a bachelor, for in 1669 he stated, "I am a married man." 
His known wife was named Ruth. 
On 28 Jun 1706 Ninian & Ruth sold 70 acres of Lewis Poynt in Prince Georges County to son Charles of Prince Georges County.
Ruth is mentioned in 1706 when "Col. Ninian and Ruth his wife deeded Negroes to sons Charles, Ninian, Thomas, John, George, and daughters Esther...[and] Jane.  Abstract of this transaction from Prince Georges County Land Records 185a-186a, Research of Nancy Pearre Lesure </ref> includes daughters Mary and Rachel but not Jane.
Ruth was living on 12 Sep. 1713 when she acknowledged a deed with her husband, but probably died before Ninian wrote his will. 
No facts confirm that Ruth's family name was Moore.
The Beall Genealogical News reports that in 1668 Ninian married Ruth Moore b. 1652, daughter of [[[Moore-33634|Richard Moore]] , planter and barrister of Calvert County and Jane (Foster) of Calvert County. 
In 1708 James Moore, age about 62, referred to "his brother Ninian Beale." 
Based on that record, there have been claims that Ruth was a Moore, and sister to James. That is no evidence that Moore was her surname. If Ninian Beall and James Moore were "brothers"-in-law it could have been by:
There have also been claims that James and Ruth were children of Richard Moore and wife Jane. There is no evidence that Richard Moore had children named James or Ruth. In 1654, [when James would have been about age 8, see above], Jane, widow of Richard Moore, stated she had sons Richard, Roger, and Timothy.  Since Richard and Jane had no son named James, even if Ruth was a Moore and sister to James, they would not have been children of Richard and Jane.
Richard Moore is said to have arrived in Maryland 1652 with Ruth and other daughters but no James Moore.
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On 3 Jan 2018 at 08:42 GMT Jack Day wrote:
On 13 Jul 2017 at 00:00 GMT Robert Moore II wrote:
Ruth is 18 degrees from SJ Baty, 20 degrees from Orville Redenbacher and 15 degrees from Victoria of the United Kingdom of Great Britain and Ireland on our single family tree. Login to find your connection.