The frequency with which Freud used father and mother in his psychological writings was investigated. Overall, he used father much more frequently than mother. This difference began with those writings that followed his father's death and his self-analysis. A most striking, though transitory, reversal followed immediately upon the death of his mother. The data suggest that Freud blended objective, scientific, and sublimated, personal issues in his parental psychology. An ancillary result shows the yearly creation of the pages of his psychological writings.