To my surprise, I have just found out that Wysogrod's Yizkor Book is in hebrew. For some reason I always thought it was in Yiddish and thus did not put much efforts in trying to search for something in it at all. I must have mixed up with some "Wyszgrodek" entries in the NY Digital Library archive - which are in Yiddish - but do not seem to be our Wyszogrod.
It is a good place to search for mentions/traces of the community who lived in the past century.
Avraham