. "United States Holocaust Memorial Museum"@en . . . . "Siegfried Geyerhahn spent time in Dachau concentration camp for his involvement with the Freemasons. He was the\"Meister des Stuh\" or Master of the Chair of the Masonic lodge Zukunft (Future) in Vienna, Austria."@en . "The Siegfried Geyerhahn correspondence consists of postcards and letters written between June 1938 and January 1939 by Siegfried Geyerhan, originally of Vienna, Austria. Geyerhahn was imprisoned in the Dachau and Buchenwald concentration camps for his involvement with the Freemasons. The majority of the correspondence was written from Dachau, but one letter, dated January 1939, was written from Buchenwald. Also includes an empty envelope."@en . . "1938 June-1939 January" . . . . "folder\n\n1"@en . "Siegfried Geyerhahn correspondence"@en . "The Siegfried Geyerhahn corresponce is arranged in a single series."@en . "irn501681" . .