The author presents a systematic analysis of the massive and cumulative traumatization of Jewish war orphans in the Netherlands, basing his examination on a concept of “traumatic sequences.” He has employed two separate methodological approaches, the one descriptive-clinical, the other quantifying and statistical. The study tests the hypotheses that the traumatization was age-specific and that the degree of traumatization was related to the severity of the resulting disturbance in psycho-social functioning. The examination of the first hypothesis is coupled with a reappraisal of a part of psychoanalytic theory.