American Jewish Congress
Kubowitzki (kubovy) Aryeh Leon
Bulgarian Immigrants Association in Israel
Wiesenthal, Simon
Central Zionist Archives
Esh (eschwege) Shaul
Yad Vashem - the Holocaust Martyrs' and Heroes' Remembrance Authority
מלקמן יוסף
Yivo - Yiddisher Visnshaftlikher Institut
Holocaust Research