William "Billy" Augustine Washington (c. 1767–1784)
William "Billy" Augustine Washington was a younger brother of Bushrod Washington.
William "Billy" Augustine Washington, son of John Augustine Washington and Hannah Bushrod Washington, was born circa 1767 in Westmoreland County, Virginia. He died from a shooting accident on 11 February 1784 while attending school in Maryland.
"[Diary entry: 18 June 1773]," Founders Online, National Archives, https://founders.archives.gov/documents/Washington/01-03-02-0003-0012-0…. [Original source: The Diaries of George Washington, vol. 3, 1 January 1771–5 November 1781, ed. Donald Jackson. Charlottesville: University Press of Virginia, 1978, pp. 187–188.]
John Augustine Washington to Bushrod Washington, 16 February 1784, Bushrod Washington Family Papers, Special Collections at The George Washington Presidential Library at Mount Vernon, Virginia.
William Augustine Washington at Find a Grave.