United States Holocaust Memorial Museum Collection, Gift of Joan Ringelheim United States Holocaust Memorial Museum Collection, Gift of Joan Ringelheim United States Holocaust Memorial Museum Collection, Gift of Joan Ringelheim Funding Note: The cataloging of this collection has been supported by a grant from the Conference on Jewish Material Claims Against Germany. Joan Ringelheim donated her papers to the United States Holocaust Memorial Museum in 2007 and 2016. The accessions previously numbered 2011.453.1 and 2016.476.1 have been incorporated into this collection