Authorship revealed in a letter written by Thomas Whately to John Temple, 14 Aug. 1766. Cf. Massachusetts Hist. Soc. Collections, 6th ser., v. 9, 1897, p. 77.
Erroneously attributed to George Grenville, John Campbell, and John Dickinson. Cf. Sabin, Cushing, and Halkett & Laing.
Microfilm. New Haven, Conn. : Yale University Library, 1998. on 1 microfilm reel with other items ; 35 mm. Copy filmed: BEIN CE215.2 W47.