The song Roy H is referring to is 'MY GOOD OLD MAN', which was sung by, amongst others, Jack Elliot of Birtley and Walter Pardon (collected by Jim Carroll himself!). It's Roud 240, appeared in Purslow's 'The Wanton Seed', and is in the Digitrad here.

It's also the very same song as the Cajun duet between Joe and Cleoma Falcon that beeliner referred to above, and which you can listen to here: 'Le vieux soulard et sa femme'.

Wonderful how those old songs got about, eh?