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George Washington had 9 siblings: 3 brothers, 2 sisters, 3 half-brothers, and 1 half-sister.

Samuel Washington (1734-1781)
John Augustine Washington (1736-1787)
Charles Washington (1738-1799)
Betty Washington Lewis (1733 - 1797)
Mildred Washington (1737-1740)
Butler Washington (1716-1716)
Lawrence Washington (1718-1752)
Augustine Washington Jr. (1720-1762)
Jane Washington (1722-1734)
Lawrence Washington

Lawrence Washington

Lawrence Washington was the elder half-brother of George Washington, being the oldest living child of Augustine Washington and his first wife Jane Butler. George Washington idolized his elder brother from a young age.

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Betty Washington Lewis

Betty Washington was the second child and only surviving daughter of Augustine and Mary Ball Washington. In adulthood, she and her husband, Fielding, contributed a considerable amount of their personal wealth and time toward the American Revolution. 

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