Columbia subject headings:
Harvard subject headings:
Anneke, Mathilde Franziska Giesler, 1817-1884--Correspondence.
Feminists--Germany--Correspondence.
Hammacher, Friedrich, 1824-1904--Correspondence.
Princeton subject headings:
Anneke, Mathilde Franziska Giesler, 1817-1884.
Feminists--Germany--Correspondence.
Feminists--Germany--History--19th century.