By the way, the St. Jeronimus information was from Jan Glete's notes from a document from 12 March 1652, in Amsterdam.
I have assumed that this was the Medemblick Directors ship, until I found out otherwise. This seems to be a page not found by the Nationaal Archief, but which Jan Glete had seen in the early 1980's, when he was doing research.
There is another page that I would very much like to have, but which was not found, dated 30 March 1652, that lists some ships:
I have great hopes for this list, as if there are only names, that probably means that there could be the captains' names listed on the manuscript. That is the real point of interest, that would potentially aid in building the orders of battle for the First Anglo-Dutch War.