The responses of 2852 Pennsylvanian urban male high school sophomores are used to investigate the relationship between adolescent occupational and educational aspirations and expectations and parental educational discrepancies, and between educational expectations and ordinal position. The mobility orientations of both middle- and working-class adolescents are found to be responsive to educational differences between parents, with maternal educational superiority having a greater incremental effect on mobility orientations than paternal educational superiority. Educational expectations are found to vary inversely with ordinal position, although the relationship is conditioned by social status and family size. For college intentions ordinal position accounts for less variance than does social status or family size. (EM)