Dear Dochterlief: It cannot be the Leendert Pront who was born in 1899, since this Leendert Pront was deported on 04.11.1942 and gassed on arrival in Auschwitz on 07.11.1942. He was indeed deemed to be too old to work…
https://ressources.memorialdelashoah.org/notice.php?q=identifiant_origine:(FRMEMSH0408707122829)
Numéro de convoi : N°40
Date de départ du convoi : 04/11/1942
Lieu de départ du convoi : Drancy
Camp de destination : Auschwitz
https://www.joodsmonument.nl/en/page/193877/leendert-pront
Amsterdam, 7 January 1899 – Auschwitz, 7 November 1942
The Leendert Pront on the tracing card must be the one who was born in 1910 since this Leendert Pront apparently was forced to work in Jawiszowice (in German: Jawischowitz) and was therefore not gassed on arrival in Auschwitz but selected for forced labour. This Leendert Pront was also interned in Buchenwald as you can see below in a link under his name.
We already had his card and the cards of his wife and son:
Leendert Pront:
#dutch
#jew
Wife: Eva Pront-Parsser:
Son: Alexander Pront