Yad Vashem , the official Israeli memorial to victims of the Holocaust , awarded him the designation of Righteous Among the Nations .
Yad Vashem , the official Israeli memorial to victims of the Holocaust , put him on its honor roll on June 11 , 1988 .
Yad Vashem , the official Israeli memorial to victims of the Holocaust , awarded him the designation of Righteous Among the Nations and put him on its honor roll on June 11 , 1988 .