Hollandsche Mercurius A very good information source about the First Anglo-Dutch War are the 1652 and 1653 volumes of the Hollandsche Mercurius. The only problem with it is that it is not reliable. With so little information remaining (only in comparison with what has been lost), we cannot ignore this source. Most of the interesting lists were republished in The First Dutch War. In Volume I, there is a list of Dutch warships in service, seemingly about June 1652. There are many problems with this list, as there are even references to events from June 1653. Earlier this year, when I received documents about the Amsterdam Directors' ships hired in 1652 and 1653, I was chagrined to find that one of them was misnamed in the published list. The list calls him "Jan Deyckers". In fact, his name was Jan Maijkers (this is shown in multiple documents). His ship was d'Alexander. The specifications were: Length: 131-1/2 feet Beam:    27-3/4 feet Hold: :     13 feet 28 guns: 12-12pdr 8-8pdr 6-6pdr 2-3pdr The crew was 95 men.