This paper builds on the initial paper, Conceptualizing a Monitoring System for Indicators in Middle Childhood, that conceptualizes elements of well-being relevant for the middle childhood period, identifies potential constructs, and develops criteria for indicators. Here, the authors follow up by identifying a set of 20 indicator constructs, half positive and half negative. Of these 20, half measure child well-being and half measure contexts that affect child development. For each construct, the authors discuss evidence of importance and provide, where possible, examples of measures from U.S. surveys.