Martin,

You could well be right.

There's a lot of evidence of Dylan having adapted a number of songs learned from the Clancy's.

I don't know whether he had any great interest in Scotish songs such as Tramps and Hawkers. But given that he spent a bit of time in the UK in the early to mid 60's and was inspired by a number of songs he heard there e.g. Girl from the north country "inspired" by Scarborough Fair, its hard to tell at this stage.

In later years Dylan was obviously aware of Paul Brady in that he recorded a version of Arthur McBride with almost identical guitar work to Paul's. The Poor imigrant would have pre-dated Brady's version of "The Homes" by many years.