"spelling of his stage name."
His mane, you mean
Unecessary pettiness Nigel
Wonder when people are going to refer to Bob Dylan as a "stage name" - never, I should imagine
It is highly unlikely that he ever used the term 'Gasworks Cross" - it never appears in his recordings and published versions of the song
"Croft" was a term used by MacColl regularly and appeared on the 'Streets of Song album he made with Dom Behan

On the croft, on the croft.
Where we played pitch-and-toss,
And the copper come and chased us away,
So we hit him on the head
With a bloody big lump of lead
And the sly little beggar run away

The song was made as an interval filler for a Theatre Workshop production
Peggy said that Ewan's attitude to Salford was very much a love/hate one - he seldom talked with warmth about it, but in a film he described walking the streets with a Jewish socialist friend and imagining Frederick Engels taking the same route (much of 'Conditions of the Working Class in England' drew its inspiration from there).
Jim Carroll