Have you found the Cairo-Marengo Stamboom? This website has information on some of the sno family - and relates to other families that come from the vier kinderen plantation. My family is also associated with the vier kinderen, via my father's grandmother - the Ligeon family.
The Surinaamse website on network 54 is also useful. Can you read Dutch? It would come in useful - though most Dutchies understand English and will reply to any requests in English if needed. If you need more help accessing these websites let me know.