Lt-Commandeur Hessel Franszoon

I have this document that I received yesterday from late July 1653. This list ships, captains, and crews, including how many men short they were. For the Friesland ship Graaf Willem, the captain is listed as being Lt-Commandeur Hessel Franszoon. I had thought that he was commander of another Friesland ship, the Sara, in place of Captain Hans Carelssen Beecke (or some such spelling). The hired Friesland ship Postpaert is also listed as being commanded by a Lt-Commandeur, in this case "t'jaert Douwes", as the document seems to say.