David Beesmer was a son of Philip Beesmer and Reintje Davidson. in 1888 he married Mina Davidson from Zwolle in Amsterdam, a daughter of Isaac Davidson and Sara Oppenheimer and had five children whith her.  Mina Davidson however passed away 31 July 1913 in Amsterdam and David Beesmer remarried 23 February 1916 Roosje Gaarkeuken, a daughter of Magiel Gaarkeuken and Grietje van Hessen. From this 2nd marriage no children were born. Roosje Gaarkeuken passed away 3 October 1937 in Amsterdam and was interred the next day in the Jewish Cemetery in Diemen.

David Beesemer resided his remaining years as widower at Ruyschstraat 7 down floor, an Old Peoples Home in Amsterdam and passed away there 2 March 1942. Two days later, 4 March 1942 he was interred in the Jewish Cemetery in Diemen.

City Archive of Amsterdam, archive card of David Beesemer; website www.wiewaswie.nl and website www.akevoth.org/mokum/ burial permits.