Hi Phil - I didn't know that the schooner was registered as 'Pretoria', but it seems that 'Pytoria' was the way her name was pronounced locally, certainly in 'Pytoria' (sub-titled 'Run Come See') as transcribed by S. B. Charters from his recording of the song which he had from its authors, John Roberts and Frederick McQueen. The spelling and conformation of authorship I quoted was from p. 6 - 8 of the notes to the Folkways 'Music of the Bahamas, Vol. 2' by Charters. These notes happen to be on-line at https://folkways-media.si.edu/liner_notes/folkways/FW03845.pdf

Incidentally, Mr McQueen (among others) was also recorded some seven years later by Jodi Stecher and Peter Siegel of Princeton University. Their field recordings were issued on the LP (now available as CD) 'The Real Bahamas'. Again, well worth getting hold of. I believe it was this LP which brought the singer and guitarist (and sponge fisher) Joseph Spence to the attention of American audiences. A fine player and bass singer, he enjoyed a well-deserved period of fame and respect and was influential to a number of musicians. There's a little Wiki article about him.