Ninian Beall by Fredric Z. Saunders20182 (Married to Andrew Hamilton not John Pottenger Jr.?)
There are several myths that have attributed Mary, wife of John POTTINGER, and Sarah, wife of Samuel MAGRUDER as being children of Ninian BEALL. While that has been disproved, in that the evidence shows that Ninian's
daughter Mary married Andrew HAMILTON,30 (See below) the thought remains among some researchers that they were BEALL sisters, and relatives of Ninian. The couples were related in that Samuel MAGRUDER in his will call John POTTINGER his "brother" [brother-in-law]

(30 a) In 1706,Ninian Beall gave his daughter Mary a Negro girl about 5 years old called Nanny. (See #2 Prince
George's Co., MD land records C:185a-186a, FHL microfilm 0,014,247)
b) In his 1717 will, Ninian Beall gave his "son-in-law" Andrew Hambleton a Negro woman called Allie. (See #1
Ninian Beall will, Maryland wills 14:504-507, FHL microfilm 0,012,846)
c) Andrew Hamilton's 1719 inventory included a Negro woman named Nanny, and a very old Negro woman
named Ailie. (See #11 Andrew Hamilton inventory, MD inventories 3:202-204, FHL microfilm 0,012,862)
d) The preceding three records show that Ninian Beall's daughter married Andrew Hamliton [Hambleton], not
John Pottinger / Pottenger.
e) Mary Beall secondly married Thomas Evans, (evidence under #31 Hamilton will, Montgomery Co., MD wills
A:262-263, FHL microfilm 0,014,230.) and had children born in the 1720s, possibly as late as about 1730.
f) Regarding claims that Mary married both AndrewHamilton&John Pottinger, that can not be. John Pottinger's
and wife Mary's first child was born in 1688. Were John Pottinger's wife Mary identical to Mary Beall who
married Andrew Hamilton and Thomas Evans, it would require her having children born almost 40 years
apart, beyond the range of child-bearing years.)

Ninian Beall by Fredric Z. Saunders20182 (Surname Pottinger not Beall, sister to John? or Mills?)
Recent research of Brice Clagett (Nov. 2001) concluded that John POTTINGER married Mary MULLIKAN and Samuel MAGRUDER married Sarah POTTINGER, sister to John. This was based on relationships derived from John DEMALL in his 1725 calling Robert POTTENGER, son of John and Mary his "cousin."18 (Brice Clagett, 27 Nov. 2001 post and 29 Nov. 2001 post to Rootsweb Gen-MEDIEVAL list) Research of mine in Feb. 2002 concluded that he overlooked that Robert POTTENGER's wife Ann EVANS was niece to DEMALL's wife, Mary EVANS. While CLAGETT's research could still be valid, and Mary a MULLIKIN and Sarah a POTTENGER, it cannot be considered as proved.27 (Fredric Z. Saunders, 1 Mar. 2002 post to Rootsweb BEALL list)
The theory which at present has the most validity is that Samuel MAGRUDER's wife Sarah may have been the daughter of William MILLS and wife Tabitha, and thus a step-daughter to Tabitha's second husband Thomas BLANFORD.28 (Peter McManus, 18 June 2003 post #1126 to Genforum's Magruder Family Forum) Some MAGRUDER researchers believe that John POTTENGER may have had a short-lived marriage to Samuel MAGRUDER's sister Elizabeth. Note, though, that in 1706 the estate of William MILLS, Jr., there was a payment to "John POTTENGER for the use of Martha BLANFORD."29 (Fredric Z. Saunders, 20 June 2003 post #1132 to Genforum's Magruder Family Forum) Martha was a daughter of Thomas BLANFORD and wife Tabitha, and half-sister to the MILLS children.

Folio 92 Ninian Beall Will Prob 2/28/1717:53229 Sarah Beall was not mentioned in this will

Pg 32 Ninian Beall Will:50935 (Not mentioned in his will?)

Vol II Pg 467 (Ninian Beall) deeds53228 (not mentioned as a daughter)

Not mentioned as a child of Pg 12 Ninian Beall & Ruth Moore47860

Will of Sarah Magruder, widow, Prince Georges Co, book 21, p.246, 16 Jan 1731-9 May 1734, gives to daus Elizabeth, wife of William Beall and to Samuel son of Ninian Bell, decd, among others.28781 (death date 1734? alive “by 1736” when dau Elionor marr: Nehemiah Wade?)