Before the war Herbert Otto Drilsma was a city councillor for the SDAP in Haarlem. A German non-commissioned officer was shot in Haarlem on 30 January 1943. As a reprisal a group of ten prominent men from Haarlem was arrested. On 2 February 1943 these men were executed in the dunes of Bloemendaal. H…
Meer over de executie van Herbert Otto Drilsma en de twee andere Joodse gijzelaars in Haarlem, is te lezen in onderstaand boek. Dr. J. Presser, Ondergang: de vervolging en verdelging van het Nederlandse Jodendom 1940-1945 I (Den Haag 1965) 333-336.