It appears Joachim Domp fled Holland illegally for France. The date of death is a "declared dead" date, and more likely nearer to his deportation date in 1942. From the Bundesarchiv Gedenkbuch:
Domp, Joachim
- 26. August 1910 in Münster i. Westfalen
wohnhaft in Münster i. Westf.
Emigration:
Niederlande
Frankreich
Deportation:
ab Drancy
26. August 1942, Auschwitz, Vernichtungslager
Todesdatum/-ort:
für tot erklärt