1From George Washington to Major Benjamin Tallmadge, 13 June 1779 (Washington Papers)
GW is referring to invisible ink, which he sent in late July (see
2From George Washington to Major Benjamin Tallmadge, 25 July 1779 (Washington Papers)
For background on this invisible ink, and its initial use, see
3To George Washington from Major Benjamin Tallmadge, 25 July 1779 (Washington Papers)
For the invisible ink, which GW sent on this date, see his
4Enclosure: Samuel Culper to Major Benjamin Tallmadge, 15 July 1779 (Washington Papers)
For Townsend’s first request for invisible ink, see Culper to John Bolton, “June 31” (...
5Enclosure: Samuel Culper, Jr., to John Bolton, 29 July 1779 (Washington Papers)
...that document. Townsend acknowledged receipt of the invisible ink, which employed a stain, in...