Postcard from Max Rehder to Theodor Rehder in 1910 with image of promenade in Sylt on front.

Postcard from family friend to Theodor Rehder. The sender raves about Berlin and the German people.

A composed portrait of German-American opera singer Rose Ettinger taken in Berlin during one of her pre-First-World-War tours of Europe.

Broad-scale image of ancestral Nauman family home of Wiebelskirchen taken in years before First World War.

An image of the Naumann ancestral home in Wiebelskirchen, Germany, as seen in 1912 during Sarah (Nauman) Keyes trip to Germany with her academic husband and daughter.