Leon Salomon Kannewasser, born 21 November 1879 in Den Helder as son of Salomon Aron Kannewasser and Jansje (Gittel) Leon Beek, married 24 October 1897 in Den Helder Esther Philip Vrieslander, born 21 November 1881 in Den Helder as daughter of Philip Lazarus Vrieslander (shopkeeper of fancy goods) and Retje (Betje) Leon Beek. However already on 5 February 1924 Esther Vrieslander passed away and sh…