GUEST, Bardan, the phrase, "Twas on an _____ morning" does NOT always get filled in with "May".

There's "Twas on a Monday morning", the first line of the first verse of "Dashing Away With a Smoothing Iron", which is followed in succeeding verses by "Twas on a Tuesday morning", etc.

And I've heard "Twas on a rainy morning", but I can't tell you what song that was.

Dave Oesterreich