Dutch Captain: Claes Janszoon Ham

Claes Janszoon Ham served the Admiralty of the Noorderkwartier. In May 1628, he commanded the ship Groene Draeck (30 guns and a crew of 85 men). The Groene Draeck was a ship of 240 lasts. A ship of 240 lasts could have been about 128ft x 31.5ft x 13ft. Sometime in 1628, he commanded the ship Makreel, a vessel of only 120 lasts. In 1636, he comanded the Koning David (34 guns, a crew of 100 sailors and 20 soldiers), a ship of 250 lasts. In March 1639, he was in Witte de With's squadron. At that date, Witte de With's flagship was the Maecht van Dordrecht. He seems to have fought in the Battle of the Sound. Sources:

1. James C. Bender, unpublished manuscript "Dutch Ships 1600-1700", 2005.

2. Dr. M.G. De Boer, De Proefjaar van Maarten Harpertszoon Tromp 1637-1639, 1946.

3. Charles R. Boxer, The Journal of Maarten Harpertszoon Tromp Anno 1639, 1930.