I got it. I did hear it from Cyril over 30 years ago.
The words I was thinking of are different, but hey it was over 30 years ago since I last heard this song. Still remember the tune vividly. It was the thread title that had me thinking of this one. Thanks for that. I have solved one of my queries.

it was

APRIL MORNING

It was on an April morning just as the sun was rising
It was on an April morning I heard the small birds sing
They were singing lovely Nancy, for love it is a fancy,
Sweet were the notes that I heard the small birds sing.

O young men are false and they ever will deceive you
O young men are false and they never will prove true,
For they're roving and they're ranging, and their minds are ever changing,
Seeking for to find out some other love that's new.

O, if I had but my own heart in keeping
O, if I had but my own heart back again,
Safe within my bosom I would lock it up forever,
And it should wander never so far from me again.

Why do you spend all your time in courting?
Why do you spend all your long time in vain?
O I don't intend to marry, I would rather longer tarry,
Young men don't you spend all your single lives in vain.

---

On One April Morning in the DT?
-Joe-