According to Roud(2236 - ignore the Mistletoe Bough - obviously an error!), Alan Lomax recorded it in 1938/1939 from Captain Richard Maitland and Cecil Sharp collected a version under the title Don Pedro in 1915.

As you say Colcord gives the simple Derry-down chorus, but the copy in DT seems to have the chorus from The Sailor's Alphabet. The verse tune seems to be a version of The Yellow Handkerchief/Flash Company, the chorus a bit like Threshing Machine! (Colcord's tune reminds me of The Flying Cloud).

I'll see about putting up Colcord's tune later today.

Mick