In a list from late 1652, there is a note that Jan Bourgoigne commanded Willem Ham's ship

In a recently received document photograph, there is confirmation that Jan Bourgoigne commanded Willem Ham's ship. Willem Ham had commanded the Noorderkwartier ship Sampson, a landsschip, in the Battle of Dover on 29 May 1652, where he was wounded. His luitenant apparently commanded the Sampson on 22 July 1652 when the Sampson was taken by the English. Willem Ham was eventually appointed captain of the Noorderkwartier hired ship Tobias. The Tobias would be the ship that Jan Bourgoigne commanded at the Battle of Dungeness on 10 December 1652.