William Murphy is an associate professor in modern Irish history at Dublin City University. He is author of Political imprisonment and the Irish, 1912-1921 (Oxford, 2014). He co-edited The Gaelic Athletic Association, 1884-2009 (Dublin, 2009) and Leisure and the Irish in the nineteenth century (Liverpool, 2016). He co-wrote Michael Collins: the man and the revolution (Cork, 2018) with Anne Dolan.