Friedrich's Heritage
Parents: Louis Winkler, Mathilde Syring
Siblings: Elsa Marie Winkler, Mathilde Winkler, Margarete Winkler, Hans Ludwig Winkler, Georg Winkler, Elfriede Winkler, Wilhelm Winkler, Dorothea Winkler, Katherine Winkler, Herbert Winkler, Mathilde Eva Winkler, Walther Winkler, Alice Winkler