Katie Barclay is Head of Historical and Classical Studies and Co-Director of the Fay Gale Centre for Research on Gender, University of Adelaide. She writes widely on the history of emotions, gender and family life. Her recent publications include Caritas: Neighbourly Love and the Early Modern Self (2021) and with Leanne Downing, Emotions, Memes and the Making of History (2023).

Darrin M. McMahon is the David W. Little Class of 1944 Professor and Chair of the Department History at Dartmouth College and the author or editor of eight books, including Happiness: A History (2006), History and Human Flourishing (2023), and most recently, Equality: The History of an Elusive Idea (2023).

Peter N. Stearns is a Distinguished University Professor of History at George Mason University. He has written widely about the history of emotion and a variety of topics in world history, including a short book on Happiness in World History (2021). With a colleague, he is currently completing a history of contemporary American childhood.