The information about Friedrich, his wife, and descendents, was provided to me by Wolfgang Windolph, his great grandson.
From Manuela Hacker: "Friedrich Wilhelm Zander geboren May 1 1872 in Gräfenhainichen ist am 13.03.1939 in Raguhn gestorben. Er war Dachdecker und hatte Magenkrebs. (diese Angaben habe ich aus dem KB Raguhn) Sein Zwillingsbruder Carl Herman verstarb 31.12.1944 in Raguhn. Er war Dachdeckermeister."
Anna Margarethe Wilhelmine STECHER
I originally list her as born 11/2.
She was called Margaretha.