United States Holocaust Memorial Museum Collection, Gift of Gertrude Bieder Meisner and the Estate of Gertrude Bieder Meisner The papers were acquired by Isidor and Fanny Bieder in the 1930s and were taken with them when the family fled from Austria in 1939. They were donated to the United States Holocaust Memorial Museum in 2004 by Gertrude Bieder Meisner, Isidor and Fanny Bieder's daughter.