At long last, here it is

Ballad of the Merry Ferry – words by Emma Rounds ("Rainbow in the Sky", ed. by Louis Utermeyer, Harcourt Brace, Inc. New York, NY, 1935); music by John Dwyer (1978). From "The Rainy Day Songbook" by Linda Allen

Sing hey, and sing ho, and sing down-a-down-derry,
Oh, what is so merry as missing a ferry?
A nice wintry morning so jolly and freezing,
A dear little cold keeps you coughing and sneezing,
And everyone mirthful and happy and gay,
As we all watch the ferry go puffing away.

Sing hey, and sing ho, and sing down-a-down-derry
Oh what is so merry as missing a ferry!

Cheers, S. in Seattle
and this is a great thread to refresh!