The broadside "John and Moll" to which Lighter referred me, dated by the Bodleian to between 1790 and 1840, does seem to be the root of the military part of "Whiskey You're the Divil." Plainly Barrington, in composing his song, remembered some lines from it. The broadside runs as follows.

JOHN AND MOLL

As John and Moll did lie composed
On a bed of sweet primroses;
Colours flying, drums a-beating,
March, my lads, there's no retreating,

Cho:   Love, farewell, darling, farewell,
          For we are all for marching.

O, soldier dear, pray do not wrong me,
Do not take my daughter from me,
If you do, I shall torment you,
And after death my ghost shall haunt you,

O mother dear, I will not wrong you,
Neither take your daughter from you,
If I do, you shall torment me,
After death your ghost shall haunt me,

Our captain cries, Lads, all be ready,
March, my boys, let's all be steady,
There's every man with his ball and powder,
And every lad his firelock on his shoulder,

Hark, I hear the drums are beating,
March, my boys, there's no retreating,
Drums are beating, colours flying,
Cannons roaring, soldiers dying,

Farewell my dear, since I must leave you,
Do not let my absence grieve you,
If you wait for my returning,
I will [ease?] you of your mourning [moaning?],

[The final line is badly blotted in the broadside copy and difficult to read.]