An earlier case study confirmed some elements of a social-psychological formulation of Weber's organizational model and discontinued others. Close relationships among authority, control, formal training, and legitimacy were found, but impersonality was not characteristic of the organization, and no evidence was found to link organizational knowledge derived from experience to the distribution of formal training or to the distribution of unofficial control. The present research replicates this study in four additional organizations. Again the relationships among authority, control, training, and legitimacy are close, and strong evidence against impersonality is found. Finally, an unusual amount of the unofficial control is exercised in all the organizations, but no evidence indicates that this challenges the official structure of authority in any of the organizations.