Back in the 1970s I was living in Market Harborough and heard a song with the chorus

You ladies all both great and small I wish you a joyful May

- or it might be I do wish you.
The line is repeated.

I have not come across it again and today - and as I am waiting for the dawn it has come to mind and is bothering me.
Without the first line of the first verse I can't do a search. I did find the phrase in a verse of a different song when trawling through May songs but it is definitely the chorus. Almost definitely the chorus.
Anyone know it?