1From George Washington to Matthias Slough, 18 February 1797 [letter not found] (Washington Papers)
Letter not found : to Matthias Slough, 18 Feb. 1797 . Slough wrote GW on 22 Feb. : “Your Highly &...
2GW to Matthias Slough, 14 October 1797 [letter not found] (Washington Papers)
Letter not found: GW to Matthias Slough, 14 Oct. 1797. Slough wrote GW on 20 Oct. “to acknoledge...