The authors wish to thank Inês Gomes, Alberto González Remuiñán, Francisco Henriques, Leonardo Aboim Pires, Caroline Delmazo, from the ReSEED team, Filipe from the Central Library of the University of Coimbra, Luísa Ricardo from the Municipal Museum of Tavira and Rui Carapinha, the son of one of the interviewees. To the interviewees, thank you very much. We also wish to thank the anonymous reviewers, Juan Infante Amate for his competent work, and the AEHE for maintaining a prestigious journal in the field of Economic History.