I suspect the following:
1. Shepen Heemraad is a ''Ships board, or a board member of a company, that dealt with ships''
2. Korenmolenaar is a ''Flour Miller''
3. Schout is a ''Rear Admiral''
5. Van Spijk is probably a place he was from
I also do not think we should have dates in the name field? Your opinion? Thnx in advance!