Michael Mallin (Irish: Micheál Ó Mealláin; 1 December 1874 – 8 May 1916) was an Irish rebel and socialist who took an active role in the 1916 Easter Rising.Born in Dublin, the son of John Mallin, a carpenter, Michael Mallin, a silk weaver and co-founder with Francis Sheehy-Skeffington of the Irish Socialist Party, was second in command of the Irish Citizen Army under James Connolly in the Easter Rising of 1916 and commanded the garrison at St.