L.H. Lumey is a medical epidemiologist at the Columbia University Mailman School of Public Health in New York. His primary research interests relate to the use of population cohorts to evaluate effects over the life course of environmental changes around the time of conception and in early life. He is the initiator of studies in different settings for the long-term follow-up of men and women born during the Dutch Famine of 1944-1945.

Sally Grantham-McGregor worked at the University of the West Indies, Jamaica for 30+ years where she developed a program of research into development of disadvantaged children, factors affecting their development and interventions aimed at improving it. She focused on low cost approaches that were feasible to go to scale. The group conducted many intervention trials of stimulation and/or nutritional supplementation with different types of high risk children.