Although psychologists often disagree over the definition, underlying process, and methodology associated with the study of moral development, they agree that differences disappear among individuals possessing a similar type of reasoning. To study individual personality differences among people identified as moral by the theories of Kohlberg, Hogan, and Haan, 100 college sophomores evenly divided by sex were assessed by self-report and observer personality measures. For Kohlberg's cognitive-developmental and Haan's interactional systems, moral scores were obtained from interview responses to moral issues concerned with drug use. For Hogan's socioanalytic system, moral scores were obtained from the California Psychological Inventory. Data analyses by moral theory resulted in patterns of personality correlates descriptive of distinctive though not necessarily unique types of moral individuals. Analysis by sex supported Gilligan's (1982) work on women and morality. Women appear more socially-oriented, men more individually-oriented. Women tend to focus on practical, real-world issues, men upon abstract, intellectual issues. More importantly, these differences appear ingrained in their personalities. (Author/JAC)