AN IRISHMAN'S EPISTLE TO THE OFFICERS AND TROOPS AT BOSTON is in the DT, with midi. This song (text only; title is "The Irishman's Epistle"; the word "bums" is deleted) is in Frank Moore, Songs and Ballads of the American Revolution (1855; reprinted by Kennikat Press, 1964, pp. 92-94), which says on the song:
"This happy production of "Paddy," must have been very popular with "the rebels," as there were four different editions of it published as broadsides, a short time after its first appearance, in the Pennsylvania Magazine. The version subjoined, was printed in May, 1775, and differs slightly in language from that contained in the periodical."--Moore, p. 92.
The lyrics (without music) are also printed in Edward Arthur Dolph, Sound Off!: Soldier Songs (Cosmopolitan Book Corporation, 1929, p. 495).
~Masato