This paper concerns early social adaptational and family antecedents of teenage delinquent behavior in a population of black first graders who were reassessed 10 years after the initial study. Subjects were 705 teenagers who had participated in the 1966-67 Woodlawn study and whose mothers had given permission for reassessment. At the time of the reassessment, the community of Woodlawn had the highest rates of official juvenile delinquency, as measured by juvenile court data, of the 76 Chicago neighborhoods. Issues of particular interest for this reassessment study were (1) whether first grade ratings of learning problems and/or aggressiveness were related to later delinquency, and (2) whether first grade social adaptational status (SAS) was related to later delinquency in the same way for males and females. Results showing relationships of first grade teacher ratings of shyness, aggressiveness, learning problems and relationships of family structure, aspects of family atmosphere (i.e., mother's expectations for her child's academic attainment and the mother's own psychological well-being), and family economic resources to teenage delinquency are reported. The information on delinquency in this study came from subjects' responses to items in "What's Happening?" -- a questionnaire that is a modified version of a validated delinquency scale developed by Gold (1970). A Rasch analysis of the items was performed separately for males and females to provide dependent and predictor variables. Then, log-linear models were used to analyze the data. Results are summarized and discussed. (Author/RH)