Recently I posted this question to the members of the CP listserv. There was some excellent (and not so excellent LOL) responses. Including some from individuals with first hand experiences and observations (e.g., F. Rivadavia, A. Fleischman)
The thread has now been (officially?) archived for open viewing
---------- Post added at 06:53 PM ---------- Previous post was at 06:33 PM ----------
BTW, there is one last entry from Fleischman missing form the archive. He later confirms Fernando's statement about getting the north and south mixed up in regards to the earlier expeditions.