Letter not found: to John Parke Custis, 1 Mar. 1778. On 3 April, Custis wrote Martha Washington: “My Affecte Regards to the General. . . . I return Him many Thanks for his Letter of the 1st of which got to my Hands on Tuesday last” (Fields, Papers of Martha Washington description begins Joseph E. Fields, ed. “Worthy Partner”: The Papers of Martha Washington. Westport, Conn., and London, 1994. description ends , 178–79).