More about Jan Samplon

I have checked my notes for the 1654 list, and Jan Samplon is not listed there. That means that the earliest listing for him is in Brandt, on page 99, where he is called "Jan Samson". Grove's list for the Battle of the Sound gives his name as "Jan Samplon". I also have copies of handwritten documents from right before the Battle of the Sound. I am looking at the page that has his name written, and the name is clearly "Samplon". I have no other sources that refer to Jan Samplon, either before 1656 or after 1658.