O'Leary, P 2023, Masks and Matter: Mining Masculinities in the South Wales Coalfield, 1870-1914. in P O'Leary, S Ward & B Jenkins (eds), Gender in Modern Welsh History: Perspectives on Masculinity and Femininity in Wales from 1750-2000. Gender Studies in Wales, Gwasg Prifysgol Cymru | University of Wales Press, Caerdydd.

O'Leary, P 2019, Revolution, Culture and Industry, c.1700‒1850. in G Evans & H Fulton (eds), The Cambridge History of Welsh Literature. Cambridge University Press, Cambridge, pp. 253-263. 10.1017/9781316227206.015

O'Leary, P 2017, ‘A Vertiginous Sense of Impending Loss’: Four Nations History and the Problem of Narrative. in N Lloyd-Jones & MM Scull (eds), Four Nations Approaches to Modern ‘British History’: A (Dis)United Kingdom?. Springer Nature, pp. 59-82. 10.1057/978-1-137-60142-1_3