Gudema Family

I am Dutch and my English is bad.

But i’ll try.
I hope you understand me en can help me.

I am trying to find out two people, in Dutch called: “Moos en Saar” Gudema. They were married.
During Worldwar II they stayed (with more people) a view months (years?) in a cave in “het Valtherbos”, a forest near the city Emmen in the north of the Netherlands.
I have some pictures of that cave.

The only thing that I knew was that they, before Worldwar II, lived in “Ter Apelkanaal” (a small place in the Netherlands)

All the while I found out, thanks to the municipality administration, that “Moos” could be Mozes Gudema (1876-1949).
He disappeared 9 december 1942 (the administration: “leaved, where unknown”).
Mozes Gudema his wife was unfortunately not Saar, but Dina de Levie (1878-1953).
So I need more certainty that Mozes and Dina are the people that I am looking for.

I also found out that Mozes and Dina became a doughter: Jette Hendeltje Gudema (born 03-02-1918).
The first letter of her first name is a J (from Jette).
That was a new starting point, because in 2004 the cave is restored and opened by an older woman called J.Schrapstein Gudema.
Perhaps the doughter?????
The first letter is also a J, but I don’t know her first name. (I still have a picture of this woman).
The local newspaper wrote in 2004 that miss J.Schrapstein Gudema lived in Israel.
I think she will be dead….

Daniel do you have information or relations that can help me?

Johan Withaar
Emmen, Netherlands.

Note: I found Mozes and Dina at gudema.com but not the four children.