Hi Malcolm

I found the song 'The Glass of Whisky' in the National Library here in Dublin in a Publication from 1793 called 'The Sentimental and Masonic Magazine'.
The Lyrics were reprinted in a number of later publications including the one you referred to that begins: 'At the side of the road, near the bridge of Drumcondra', in Thomas Crofton Croker, The popular songs of Ireland (London: H Colburn, 1839).
With the help of Jerry O'Reilly from the Góílín Club in Dublin I found that the air known as 'the Bould Thady Quill' suited the song well and it is to this air that I sing the song. However a friend of mine that was taken by the song, has expressed a desire to hear the original air that the composer had in mind and it is this that has promped me to endeavour to track down the original air.

Fergus