District supervisors

Beginning in 1667, Leeuwenhoek and Daniel Bogaert, camerbewaarder of the mayors' chamber, were appointed district general supervisors (wijckmeesters-generaal). The city's district supervisors were mainly responsible for making sure everyone in their district had the appropriate fire-fighting equipment ready and in good working order. The district supervisors reported to the two general supervisors, who then reported to the magistrates (Leeuwenhoek) and the mayors (Bogaert).

Bogaert died in 1681, but Leeuwenhoek continued receiving payments until his death. In 1718, the mayors abolished the office, though they kept paying Leeuwenhoek. In 1851, the Delft yearbook notes that the office had been renewed. The city had seven districts, replacing the sixteen from Leeuwenhoek's time. Each had a supervisor, but there was only one district supervisor (now called the generale wijkmeester).

List of men who served Delft as district supervisors.