In fact similarity of this tune to Star of County Down has oft been noted. Following e.g. from OP of an old thread~~

···Subject: Star of the County Down
From: Paul Stamler - PM
Date: 18 Feb 98 - 02:41 AM
Hey, folks: How many songs do you know that use the tune "Star of the County Down", aka "Dives and Lazarus"?···

There are also frequent refs which can be found by googling the two titles together in the Roud Index e.g. ~~

···Dives and Lazarus (Roud 477; Child 56)
24 Feb 2011 ... The tune is related to the Irish air of Star of the County Down···

and in sleevenotes by Bert Lloyd.

~M~

shall refresh that old thread to show how many other songs share this air.