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
nephew Anthonij Jans de Molijn (1656-1729), medical doctor, buried in Nieuwe Kerk. He was living on Nooreijnde and left five children under 18.
DTB Delft inv. 48, fol. 262