United States Holocaust Memorial Museum Collection, Gift of John and Melanie Balzer The questionnaire was purchased at auction by John and Melanie Balzer in 1998 and was donated to the United States Holocaust Memorial Museum by John and Melanie Balzer in 1998. Issued to Gitla Wilenska, Warsaw, Poland. Purchased at auction by John and Melanie Balzer, April 1998. Donated to the United States Holocaust Memorial Museum in 1998 by John and Melanie Balzer.