Asser trouwde op 22 mei 1924 met Elvire Ossedrijver (zonder n), geb. 12-10-1902 te Sittard. Zij kregen 2 dochters, Bertie Esther (1925-2014) en Ennie Elvire (1926-2012).
We have been unable to determine whether one or more members of this family survived the war. While their names do not appear on the lists of survivors, we have not been able to trace them in In Memoriam either. They are therefore labeled as 'surviving' and their names are not listed.