4. JA said in his reply of
28 April, below, that the enclosures were not with the letter when he received it. On Burgoyne's efforts in drama writing during the siege of Boston, among others
The Blockade of Boston, acted in January and parodied as
The Blockheads, or The Affrighted Officers, see
Winsor, Memorial History of Boston
, 3:93, 161–162, with references there.