Leendert de Boer was the son of Philip Salomon de Boer and Elisabeth Vleeschhouwer. He was the widower of Sara Lisser, and he lived at 32 Borssenburgstraat in Amsterdam. On 11 March 1943 Leendert de Boer died at Vught concentration camp.
Records concentration camp Vught, Sterbebuch 1943