Henderikus van Dam was burried at the Jewish cemetery of Groningen. A potograph of his tombstone is online, at the Netherlands War Graves Foundation. On the stone, 23rd of September 5643 (September 23rd, 1882) is recorded as Henderikus birthdate. Some other sources state he was born in 1885.
Additi…
In addition, a Jokos file (number 54450) on this household is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.
Henderikus van Dam is de zoon van Hendrik (Chaim) van Dam en Marchien van Berg. Hij is geboren op 23 september 1885. Hij huwde op 08 augustus 1907 Betje van Gilpen. Zij kregen 3 kinderen.