I am the son of Ernst's youngest son:
Louis van Coevorden who changed his name [upon arrival in Palestine in 1947 -became Israel in 1948]
to Jehuda Shimoni .
Jehuda was born in Coevorden on 3.4.1919.
Jehuda escaped from Hollandland in January 1942 [with Max Weissglas and the Sanders brothers].
first to Switzerland and then to England via occupied France, Spain -crossing the Pyrenees [oct 1943].
In Switzerland he spend time at the cossonay labor camp.
He was an Englandvarder - all dutch men who escaped to England during ww2 are called Englandvardes
He crossed the Pyrenees [oct 1943] with Alfred Frank, then to Lisbon Portugal, Gibraltar - and finally to Liverpool
Jehuda participated in the capture/kidnapping of Adolf Eichman in Argentina in May 1960.
HE was EL-LAL's head of operations at that time.
Iser Harel, Head of The Mossad requested Jehuda to organize an Air flight to Argentina. And the rest is history.
Ernst and Rachel had 4 children:
Adina Kochba (1917) and Jehuda (1919) survived WW2 and lived in Israel thereafter.
Fritz and his wife Martha perished in 1945 and Yetta died in 1950.
Their children-the grandchildren of Ernst and Rachel  grew up in Israel and have married children -all living in Israel.
all the 8 children are grandparents .
the 4 children's names:
Yetta - her children - Edi [1937-1999], Nava -1942
Fritz: his son Efraim Kochba 
Adina kochba: Yachin , Yoseph 
Jehuda: Micah , Bilha , Ilan 
amended by Micha SHIMONI on 5.5.2016 and 15.11.2020