"Jim Carroll, are Tommy Armstrongs songs Folk Songs"
You tell me - there is no evidence of Armstrong's poetry achieving wide currency prior to The High Level Ranter's popularising, but on the other hand, they may have done, as he as writing from the community which he chose to make song about - were they part of the folk tradition whish was never picked up.
As for Lowe and Grainger - I'm sure you are abot to tell me that they are definitely folk songs - why are they?
Jim Carroll