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The Washington Family Papers Project
George Washingtons Stepchildren: John (Jacky) Parke Custis (1754-1781) Martha (Patsy) Parke Custis (1756-1773)
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Washington family - Wikipedia
Washington had no biological children. His wife Martha Dandridge had four children from her first marriage to Daniel Parke Custis. These step-children were
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RCW 26.04.020: Prohibited marriages. - WA.gov
(2) It is unlawful for any person to marry his or her sibling, child, grandchild, aunt, uncle, niece, or nephew.
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