On 19 December 1938 over 200 German male refugees over 18 were transferred from Amsterdam to the prison camp Norg in Veenhuizen. On 3 January 1939, 207 of them were transferred to the naval base at Hellevoetsluis. Alexander David was among them.
A.L. Jonker, Joodse vluchtelingen in Hellevoetsluis 1938-1940 (Hellevoetsluis 1995) 106
Alexander David was married to Jenny Gehlkopf. It is known that his wife and child lived in Westerbork from 1940.
Stadsarchief Amsterdam, archiefkaart Jenny Gehlkopf