United States Holocaust Memorial Museum Collection, Gift of the Connuck, Yosovitz and Heller families. Donated by the Connuck, Yosovitz and Heller families in memory of Lejzor, Tubba, and David Herenfeld, their spouses, children, grandchildren, and extended families who perished in the Warsaw Ghetto or at Treblinka in the years 1941-1942 Donated to the United States Holocaust Memorial Museum in 2012 by the Connuck, Yosovitz and Heller families.