The court was in session 19–23 Mar. GW attended only on this day, arriving late with John West, Jr. (Fairfax County Order Book for 1768–70, 331–55, Vi Microfilm).
“[Diary entry: 20 March 1770],” Founders Online, National Archives, https://founders.archives.gov/documents/Washington/01-02-02-0005-0006-0021. [Original source: The Diaries of George Washington, vol. 2, 14 January 1766 – 31 December 1770, ed. Donald Jackson. Charlottesville: University Press of Virginia, 1976, p. 221.]