That WAS a good catch, Charley! First verse, per DT:

THE DREADNAUGHT

It's of a flash packet, a packet of fame,
She hails from New York and the Dreadnaught's her name.
'Cross the wild Western ocean, she's bound for to go.
She's the Liverpool packet. Oh Lord, let her go!
Derry down, down, down derry down.

The version that gets done at the San Francisco chantey sings -- not quite the one referenced here in the DT -- definitely includes the line "Bound away in the Dreadnaught to the westward we'll go." Chanteyranger will undoubtedly know where that version came from, if you can dredge him up.

ClaireBear

Clean Supper: If the song you're seeking is the one Guest,Q has linked to at Simply Australia, see if the tune link from the DT Dreadnaught lyric jogs your memory.