The SIPP is designed to measure changes in the economic status of individuals, families, and households over time.  Unique to the SIPP is the frequency of data collection; every four months information is gathered for each sample household and each person in the sample.  This frequency of data collection enables the tracking of changes over short periods of time.  The survey concentrates on persons 15 years old and over for each of whom a detailed questionnaire is filled.  This paper describes the procedure and results from an effort to examine the status of children using the SIPP data set.  This requires the linking of information from other person’s records to the child’s record.  We look at the child’s status at the start of the survey and monitor changes in status recorded in each succeeding interview.  The file to be used for this work consists of children’s (and adults’) records containing information collected from five waves of interviewing, covering over one and one-half years.  Thus, the interrelationships among changes in residential characteristics, changes in household income, changes in family and household size and structure due to divorce, etc., may be examined on a longitudinal basis.