It is said that Selkirk came to settle on Arguas Buenas after he fell out with his commander over the seaworthiness of the Cinque Ports, a boat they were aboard during privateering voyage.
He decided to remain behind on the island to overhaul the worm-infested vessel after landing - probably not realising it would be nearly five years before he would be rescued by a visiting English ship with Captain Woodes Rogers at the helm.
The above is a quote from the story. This does not make sense(nor does the whole story).
Points.
1> He remained behind to over haul the vessel.
a. Why remain behind to overhaul the ship that is leaving you on the Island
b.What happened to other crew members during the overhauling.
c.Why leave valuable instruments with a person with no needs of them.
1. Navigators were worth more than captains at this time.
2. Dividers are not much use without charts. And no captain would surrender their charts without a fight.
a. not sure how much dividers would be worth wihout other instruments for longitude or latitude(sexton and clock)
I read into that, that he was left with a worn-out ship and a good ship sailed away -— indicating to me that there were two navigators.
The other could be explained any number of ways -— the divider was “his” and the sexton was the captains (or whoever) OR there was sexton, but it has not been found OR he lost the dividers (and the archaologist found it) and took the sexton on the rescue ship, etc.