A long version of "The Flying Cloud" is given in Kenneth Peacock, 1965, "Songs of the Newfoundland Outports," vol. 3, pp. 842-845.
The narrator is Henry Anderson, and he meets Captain More in Valparaiso.
Sheet music to two tunes is provided, one of which Peacock says is much superior.
The slaves are sold on the Arabian shore. The Flying Cloud was accosted by the Spanish ship Sanvo, and Captain More and 80 of his men were killed; the remainder taken prisoner and sentenced to hang.