The date of death of Leendert Porcelijn.

According to a survivor, Leendert Porcelijn perished in January 1944 in Jawiszowice. This differs from the official date of death of 29 February 1944 as determined by the Dutch Ministry of Justice after the war. For the time being, the website joodsmonument.nl list only the dates of death, as published at the time in the "Nederlandse Staatscourant" (Dutch Government Gazette) by the Ministry of Justice.