This article demonstrates the use of a reflexive lifeline instrument within a study oriented towards documenting and explaining resilience from a sociological perspective. Informed by both life course and biographical perspectives, our research design comprised two interviews incorporating recursive co-construction of the participant’s lifeline. We aimed to meet three objectives with this method: (1) to collect accurate retrospective data about the timing of lives; (2) to garner biographical data that allowed us to explore lives as wholes; and (3) to elicit participant reflexivity on turning points associated with resilience. Our approach was distinctive in its explicit use of the lifeline both as a means to bring life stories into dialogue with life histories, and as a dynamic prompt to engage participants in the reflexive co-construction of turning points as fateful moments. We illustrate our approach through a case presentation and analysis of the reflexive lifelines co-constructed with two men who participated in our study. We also show how the reflexive lifeline interview generated opportunities for participant-led researcher reflexivity.