A longitudinal study of children and their families in Manhattan, New York City, this study comprises two samples: (1) a cross-sectional sample of 1034 families, and (2) a welfare (Aid to Dependent Children) sample of 1,000 families. The results of several profiling techniques which were conducted on the Welfare Sample are disucssed. While the family and child behaivor profiles have already been constructed on the Cross-sectional sample, most of the single-parent families in that sample (22 percent in total) fell into one family type. However, since the welfare sample families were predominantly single-parent in composition (74 percent), family profiling in this sample offered an opportunity to investigate types of low income single-parent families. Five welfare family types were derived. In arriving at the family typology, a program (Hierarchical Cluster Analysis) was adopted, which finds the profile of Family X over the various dimensions in constructing the profile and the score profiles of each of the other families in the sample. So that types of families could be characterized as completely as possible, social (demographic), parental personality and marital attributes, and child-rearing practices were included as dimensions. Additionally, seven Welfare child personality types were developed from a range of child behavior items. (Author/JM)