“18th. Saturday.,” Founders Online, National Archives, https://founders.archives.gov/documents/Adams/03-01-02-0004-0006-0018. [Original source: The Adams Papers, Diary of John Quincy Adams, vol. 1, November 1779 – March 1786, ed. Robert J. Taylor and Marc Friedlaender. Cambridge, MA: Harvard University Press, 1981, p. 127.]