Volumes 1 through 20 of Alle de Brieven / Collected Letters, the complete series. Download for free.
Master list (pdf) of all 602 L-numbers, their Leeuwenhoek number, and their Collected Letters number
great-grandmother Neeltje's nephew Jacob Maertens Hogenhouck (-1638) appointed magistrate. He served from 1622 to 1624.