Sara Kanner was a daughter of Osias Kanner and Debora Kanner. She was born at Novosielitzia (New Silezia) in Poland and was married to Mozes Fleminger. Sara Kanner passed away 6 October 1940 in the Jewish Hospital at Schietbaanlaan 42 in Rotterdam, due to "bronchopneumonia" She was interred in the Jewish Cemetery Toepad in Rotterdam
Her certifivate of death, nr. 4933 dated 8 October 1940 shows that Sara was 78 years of age when she passed away. This means that her year of birth must have been 1862 instead 1872.
At the time of her passing, Sara was already widowed from Mozes Fleminger. Of him, as also of her parents is nothing further known.
Sources: City Archive of Rotterdam, death of Sara Kanner.