Harriet is a historian of early modern Britain, with particular interests in the religious and cultural history of the English Reformation and in the field of historical memory. She received her PhD from the University of Cambridge in 2018 and her thesis was revised and published as Memory and the Dissolution of the Monasteries in Early Modern England (Cambridge UP, 2021). The book seeks to recover the significance of the dissolution to the wider processes of the English Reformation and early modern senses of the past. It was shortlisted for the 2021 Royal Historical Society Whitfield Prize for a first book in any field of British or Irish history. She has published articles, mainly on the legacies of the dissolution and the Reformation, in the Historical Journal, the Sixteenth Century Journal, The Seventeenth Century, and Reformation.

Current research interests include early modern senses of nostalgia, memory, time, and periodisation. A volume on Early Modern Nostalgia: Memory, Temporality, and Emotion, co-edited with Alexandra Walsham, is forthcoming with Boydell & Brewer in 2023.

From October 2022, Harriet is the J. H. Plumb College Lecturer at Christ's and Director of Studies for Part I.