This is my version nowadays (in case anyone is bothered)

You nymphs and swains do sympathise in my sorrow,
And pity a poor maid that's sorely oppressed
For since Cupid first stung me with his killing arrow,   
My mind is tormented, I can find no rest.
I am hourly repining and constantly sighing
For as handsome young a fellow as ever was known.
For since Adam's creation, you'll find in no nation,
A youth like young Edward, the boast of Athlone.

In the spring when the small birds they all join together,
They would charm the green groves and valleys likewise.
The refreshing breezes denote the mild weather,
The violets do spring and the primroses rise.
It was in that very season, a young man most pleasing,
His charm and affection unto me made known.
I vow and declare, my heart did ensnare,
Young Edward the beauty and boast of Athlone.

As I happened to stray, by the clear river Shannon,
Where I first saw young Edward going out for a stroll.
He saluted me most kindly, crying 'Dearest Mary Mahon',
I hope you will escort me through the dark shady groves.
I hope you won't refuse me, I pray, do excuse me.'
Those words he repeated in his soft mellow tone.
I being sorely bent on my course, straight I went
With young Edward the beauty and boast of Athlone.

I courted young Edward for better than three years,
A most modest young fellow as ever drew breath.
Until a comrade of mine our love did discover,
And soon put an end to our joy and our mirth
She told his aged mother that we went together,
And to have us parted far away from our home,
It's in grief I do relate it, the job they completed,
And banished young Edward, the boast of Athlone.

But since he is gone, may kind fortune shine on him,
And keep him from harm, wherever he may roam.
May providence protect him, and angels may guard him
Until he's safe landed on a far distant shore.
And may that unhappy girl who banished my pearl,
May she feel her remorse until her last dying moan.
And likewise his aged mother who took delight forever
In banishing young Edward the boast of Athlone.