"With Fosterage in Medieval Ireland: An Emotional History, Thomas O’Donnell has written the first book-length work on fosterage in the Middle Ages. This is an accomplishment to be celebrated. [...] O’Donnell’s work is groundbreaking and will be the study to reference when thinking about fosterage in the near future."
- Lahney Preston-Matto, Adelphi University, Journal of British Studies, June 2021