L, M-Ar, Mass. Archives Collection, vol. 168 (Revolution Council Papers, 1777–1778), fol. 441. Addressed on cover: “To/The Honble: Council—/Boston." Docketed: “Letter from Allen Hallet/ respecting his being appointed/to Command the Arm'd Brig/Tyranicide—/July 11th. 1778; 314/ Allen Hallet's acceptance/of the Appointment made him/as Capt. of the Tyrannicide/July 10th. 1778."