English Ludwig Frederick Hammer (1834-1921), American photographer of German origin German Ludwig Frederick Hammer (1834-1921), amerikanischer Fotograf...
https://www.flickr.com/photos/internetarchivebookimages/14749934356/ operator: Flickr URL: https://live.staticflickr.com/3921/14749934356_42eee134eb_o.jpg...
Y. : H. Stafford Description Subjects: New York (State) -- Biography Portraits Language English Publication date 1914 publication_date QS:P577,+1914-00-00T00:00:00Z/9...
English operator: Web Gallery of Art described at URL: https://www.wga.hu/html/b/backer/p_lutma.html...
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