His father worked in London as Dutch shipbroker and also held the position of Consul General of the Netherlands. John William subsequently became Vice Consul. An obituary in EMM., 38, 1902, p.186 states ‘He took a keen interest in entomology, and we think had amassed very considerable collections especially in Coleoptera and Hymenoptera... But he published little if anything.’ Chalmers-Hunt (1976) p.140 records that his British Coleoptera collection was sold by Stevens on 17 March 1903. FESL 1860, Council (MD 2/04)
Dates
1826 – 17 June 1902