This text comes from The Canadian Soldiers' Song Book, a historical songbook transcribed on Wikisource and reproduced from the pinned revision linked below.
We have sung your song of Tipperary,
As we sat in the campfire's glow.
We have marched along to that well-known song
"Are we down-hearted—No."
And now we're singing "Keep the Home Fires burning."
But there's one song we miss o'er the foam,
That's the song the kettle is singing on the hob
In a dear little place called home.