I should have looked at the next song in my list, for Boy And The Mantle has the 3rd of May.

(I should have said that this is from the DT only - using text search in my local copy. I don't think that "month of May" is so useful as it mostly brings up the nuisance "It was in the month of May" or similar. Using just "of May" get you things like "It was on the Xth of May").

Mick