Nisim Kalef with his three sons

This is my paternal grandfather Nisim Kalef with his three sons. The youngest was my father, Avram Kalef. The other two died very early. Nisim also died early so I don?t remember him. This photo was taken in the Cabinet Portrait studio in Belgrade in the 1900s. Nisim Kalef died a banal death. He had a perforation to the caecum and died. His wife, my grandmother Matilda Kalef, remained to struggle with the three kids. Then two sons died and only one remained, my father Avram. I don't know the names of the boys who died. My father was born in Belgrade in 1902. He was a wonderful child, went to gymnasium, spoke several languages and finished that academy for international trade. My father was a diabetic and had to pay a lot of attention to what he ate.