Hulton / Getty George Washington America's first President had no biological children, but he became stepfather to the two children of the widow Martha Custis when he married her in 1759: John "Jacky" Parke Custis, left in the c. 1761 illustration above, and Martha "Patsy" Parke Custis. Both of the Custis children met with untimely ends; Jacky joined his stepfather's army but ..