Looks like Lloyd (and possibly MacColl) had a hand in this one.

Kendall's version above is what the duo recorded on "There She Blow!" for Riverside, ca1956.

MarcB's version is from Lloyd et al's "Leviathan" of 1967. The tune in both cases is "Erin Go Bragh."

According to Steve Roud's indispensable index, the only known text recorded before that on "There She Blows!" appeared in Greenleaf & Mansfield's "Ballads & Sea Songs of Newfoundland" (1933). It's pretty much the same as what L & M recorded ca1956, but Paddy O'Brien
wants to see England rather than Greenland. And Paddy "had never been sailing before." Not "whaling," as L & M have it. The Newfoundland text is not really a "whaling ballad."

By 1967, Lloyd had made additional changes to the song, replacing the "Paddy whack" refrain with the clever "Caterwaulin', tarpaulin, harpoonin' and all."   

He also introduced "South Georgia" and the "Ross Sea."