p 10 -
BALL, Margaret, widow. Will. 20 June 1777. Rec. 16 Oct. 1783.
Dau. Sarah Jones. Son Richard Ball, one of negroes given by last will of my father-in-law William Ball; Gr.son, William Ball; Gr.Dau. Alice Ball, dau. of son William, dec. and Priscilla, his wife, dau. of Wm. Glascock, now Priscilla Harvey, wife of Mungo Harvey. Gr.daus.: Margaret, Betty and Hannah Milner. To James Harvey, son of Mr. Mungo Harvey land in Lancaster devised me by my father; to John Harvey, son of Mr. Mungo Harvey: Margaret Ball. Late Husband William Ball. Extrs. Gr. Son William Ball and Mr. Mungo Harvey. Wits. Ozwald Newby, Wm. Newby, Ozwald Newby, Jr. W.B. 22, p. 3-4.
W.B. 22, pp. 47-49 - Mrs. Margaret Ball's estate in Westmoreland County, appraised, and returns made by Wm. Monroe, Sr., Jno. Weedon and Chicott Edrington.
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[This is (possibly) his grandmother's will, in which he is identified as the son of Mungo Harvey.]