Here's Iain's words as printed in his cd Words O Fiction - not sure where the 'dug' came from in an earlier listing!
The One Singer, One Song (Ewan MacVicar) version is correct and how Iain used to sing the song way back when.
Tattie Bogle, his tune goes up on 'you'd rather be'.

Dumbarton's the place
Whaur Ah met Anne McKelvie
Oot walking alang the Clyde shore
Oh we blethered a while
Till, as evening was falling,
We walked the road back tae her door

    chorus
    Dae ye fancy a night at the dancing wi me
    The band in the toon ha is the finest you'll see
    And if there's no anither place you' rather be
    Then come tae the dance wi me Annie

She said "Ah'd like a few days
Tae think ower yer proposal
Ma mither wid have tae consent"
So we pairted that night
Wi a kiss on the doorstep
And back hame through Bowling Ah went

    chorus

Oh she finally agreed
Tae come oot wi me dancing
And travel tae Clydebank by train
On that cauld station platform for hours Ah waited
But never seen Annie again

    chorus

Now it's aft times A've walked
By the banks o the Leven
And followed her flow tae the Clyde
And hae thocht o ma day spent wi Annie McKelvie
The lassie wha wounded ma pride

    chorus

In actual fact Iain's pronounces of many more of the words colloquially, eg 'raither'
- I am also sure he used to sing 'took the road back tae her door' - but he is allowed over twenty-five or so years to alter the words of his own song!
The song was based on an experience Iain had in 1966, with a girl he met at Balloch Folk Club - her name was not Annie McKelvie!!!! (I believe he has actually forgotten what she was called)

I think the song is popular in part because it is an experience that we have all had at some point in our lives - the tune is catchy and attractive, and I know Iain thinks of the song as being set in Edwardian times rather than the 60s!

I've not heard Alison Younger's version, will look out for it - Willie Scott did come to our summer school class one year, but I can't remember which or whether he heard me sing the song - as I said before Chris Miles became the source of it probably 1985 or maybe it was 1986 onwards. We have since even heard 'country' versions!!!