I remember singing this song in school then. The lyrics were given to us on cyclostyled sheets.
And smile, smile, smile,
While you’ve a lucifer to light your fag,
Smile, boys, that’s the style.
What’s the use of worrying?
It never was worth while, so
Pack up your troubles in your old kit-bag,
And smile, smile, smile.'
An odd song to teach children?
Do you remember this learning this when you were a child?