From Douglas Clark's Dubliners Discography, the song was recorded by the Dubliners on:

15 Years On
1977   
Polydor   
2683 070

And yet another version, from this site, which more closely matches the lyrics MizzKyttie remembers:

PLOUGHBOY LADS

When she was only sixteen year
A beauty she was wearing
Ah little little did she think
That she'd be soon a grievin' oh oh

Chorus
For the Ploughboy lads are gay braw lads
They'll court you and decieve you
Oh they'll take all and they'll gang awa'
And leave the lasses grievin', oh oh

If she'd stayed home when she was told
And done her mammy's biddin', oh
She not be sitting by yon fireside
Singin' hush abye my baby oh oh

Hush abye, she's your ma,
But the Lord knows who's your daddy oh
So maids take care and be aware
Of the young man in the gloamin' oh oh