Undertaken to assemble a broad range of family, household, employment, schooling, and welfare data on families living in urban poverty areas of Chicago. The researchers were seeking to test a variety of theories about urban poverty. Questions concerned respondents' current lives as well as their recall of life events from birth to age 21. Major areas of investigation included household composition, family background, education, time spent in detention or jail, childbirth, fertility, relationship history, current employment, employment history, military service, participation in informal economy, child care, child support, child-rearing, neighborhood and housing characteristics, social networks, current health, current and past public aid use, current income, and major life events.