I don't think either Parnell or Kitty play any part of this song. It was written by englishman Charles Dibden in 1776 & became quite popular with the sailors. Three versions show up in "Songs of the Whalermen" by Gale Huntington . 3 ships logs had 'The Rose of Allendale' 1847, 1849 & 1852, one ship's log had the version 'Mary's Cot' 1848 & one more log had 'The Beacon Light' 1835. Dibden wrote a fair number of songs that sailors of his time took a liking too, so much so portraying sailoring in the Royal Navy as a diserable form of employment that he was knighted for swelling the ranks of the Navy through his written music. If you do a DT & fourm search with Didben you may come up with a number of his other songs. Barry