I've just come across this and I'm pleased to see that the song I was after has turned up. The Mudcat can take its time, but it delivers in the end.

Interesting to see that the author of Mary's reply evidently wasn’t Percy French.

What's missing though is the verse where Mary indicates a slight reprimand to her man's attention to the underdressed ladies in London. I'm sure I remember seeing it - I think likely in a copy of Ireland's Own. II'd guess that some singer along the way improved the song. (Maybe even Percy French himself…)

Maybe it'll turn up in time.