In continuity with delinquency area research, the study examined the neighborhood characteristics of 16 delinquent gangs in Chicago, 1960. Compared with city norms, gang neighborhoods were lower in Borgatta-Hadden census tract factors of socioeconomic status and stable family; higher on disorganization-deprivation; not different on the suburb factor. Measures of gang behavior were taken from the Short-Tennyson-Howard rated behavior factors: conflict, stable, corner-boy, mature sex, retreatist, and authority protest. Significant positive correlations were found between the suburb and the stable corner-boy factors; and between the socioeconomic status and authority protest factors. These results seem to support two major parts of A. Cohen's theory of delinquent boys. (Author abstract)