Analysis of information sources in references of the Wikipedia article "Mary Ball Washington" in English language version.
Mary Ball Washington left GW 'all my Lands on Accokeek Run in the County of Stafford, and also my Negroe Boy George. . . . Also my best Bed, Bedstead & Virginia Cloth Curtains (the same that stands in my best room) my Quilted blue & white Quilt & my best dressing Glass . . . . Lastly I nominate & appoint my said Son General George Washington Executor of this my Will ...'
The following memoranda is copied from the family Bible of Augustine ... Mildred Washington was born ye 21 of June 1739 ... departed this life Oct. ye 23, 1740
Mary followed the advice of her older half-brother in England, Joseph Ball Jr. George, Ball told her, lacked the proper connections and would never achieve "any considerable preferment in the navy." He warned that they would most likely "cut and staple him and use him like a negro, or rather, like a dog." He opined that a Virginia planter with "three or four hundred acres of land and three or four slaves" would be better off.
Lawrence Washington ... obtained, in 1746, a midshipman's warrant in the Royal Navy for his younger brother George.