ABSTRACT This article proposes an innovative analytical framework for understanding memory work in oral history interviews with migrants who experienced the Troubles in Northern Ireland before migrating to Britain. Integrating theories of diasporic subjectivity from migration studies with conceptual developments in oral history and current research on memory, temporality and the history of emotions, it focuses on transnational dynamics in ‘travelling memories’ of the Troubles brought to Britain by first-generation migrants; the long temporal ‘afterlife of feelings’ attached to conflict memories; and the process of ‘associative diffraction’ whereby chronologically sequential memories are interrupted, fragmented and recombined in achronological sequences linking diverse temporal moments and spatial locations. The utility of these concepts is explored in an intensive analysis of memory dynamics and subjectivity in a single interview, with Siobhán O’Neill, who grew up Catholic, working-class and queer in nationalist/republican West Belfast at the epicentre of conflict violence, and moved to London in 1986. The article argues that the specificities of individual migration stories such as Siobhán’s resist conventional generalisation, and offers a new theoretical and methodological framework for the systematic investigation of quotidian experiences, memories and silences that are unexplored in the established historiographies of the Troubles and the Irish diaspora in Britain.